|Traded as||NYSE: LNKD|
Mountain View, California
|Headquarters||Mountain View, California, U.S.|
|Revenue||$2.21 billion (2014)|
|Net income||$15 million (2014)|
|Alexa rank||14 (August 2015[update])|
|Type of site||Social network service|
|Users||Over 400 million|
|Launched||May 5, 2003|
LinkedIn // is a business-oriented social networking service. Founded in December 2002 and launched on May 5, 2003, it is mainly used for professional networking. As of 2015, most of the site's revenue comes from selling access to information about its users to recruiters.
The site is available in 24 languages, including Arabic, Chinese, English, French, German, Italian, Portuguese, Spanish, Dutch, Swedish, Danish, Romanian, Russian, Turkish, Japanese, Czech, Polish, Korean, Indonesian, Malay, and Tagalog. As of 2 July 2013[update], Quantcast reports LinkedIn has 65.6 million monthly unique U.S. visitors and 178.4 million globally, a number that as of 29 October 2013 has increased to 184 million. In June 2011, LinkedIn had 33.9 million unique visitors, up 63 percent from a year earlier and surpassing MySpace. LinkedIn filed for an initial public offering in January 2011 and traded its first shares on May 19, 2011, under the NYSE symbol "LNKD".
- 1 Overview
- 2 History
- 3 Membership
- 4 Future plans
- 5 Dropped features
- 6 Business units
- 7 Reception
- 8 International restrictions
- 9 SNA LinkedIn
- 10 Surveillance and NSA Program
- 11 See also
- 12 References
- 13 External links
LinkedIn is headquartered in Mountain View, California, with offices in Omaha, Chicago, Los Angeles, New York, San Francisco, Washington, London, Dublin, Amsterdam, Milan, Munich, Madrid, Stockholm, Singapore, Hong Kong, China, Japan, Australia, Canada, India and Dubai.
LinkedIn has more than 7,600 full-time employees with offices in 30 cities around the world. LinkedIn started off 2012 with about 2,100 full-time employees worldwide, up from around 1,000 at the beginning of 2011 and about 500 at the beginning of 2010.
It is funded by Sequoia Capital, Greylock, Bain Capital Ventures, Bessemer Venture Partners and the European Founders Fund. LinkedIn reached profitability in March 2006. Through January 2011, the company had received a total of $103 million of investment.
Founding to 2010
The company was founded by Reid Hoffman and founding team members from PayPal and Socialnet.com (Allen Blue, Eric Ly, Jean-Luc Vaillant, Lee Hower, Konstantin Guericke, Stephen Beitzel, David Eves, Ian McNish, Yan Pujante, and Chris Saccheri).
In late 2003, Sequoia Capital led the Series A investment in the company. In June 2008, Sequoia Capital, Greylock Partners, and other venture capital firms purchased a 5% stake in the company for $53 million, giving the company a post-money valuation of approximately $1 billion.
In 2010, LinkedIn opened an International Headquarters in Dublin, Ireland, received a $20 million investment from Tiger Global Management LLC at a valuation of approximately $2 billion, and announced its first acquisition, Mspoke, and improved its 1% premium subscription ratio. In October of that year Silicon Valley Insider ranked the company No. 10 on its Top 100 List of most valuable start ups. By December, the company was valued at $1.575 billion in private markets.
2011 to present
LinkedIn filed for an initial public offering in January 2011. The company traded its first shares on May 19, 2011, under the NYSE symbol "LNKD", at $45 per share. Shares of LinkedIn rose as much as 171 percent in their first day of trade on the New York Stock Exchange and closed at $94.25, more than 109 percent above IPO price. Shortly after the IPO, the site's underlying infrastructure was revised to allow accelerated revision-release cycles.
In 2011, LinkedIn earned $154.6 million in advertising revenue alone, surpassing Twitter, which earned $139.5 million. LinkedIn’s fourth-quarter 2011 earnings soared due to the company's increase in success in the social media world.
In spring 2012, LinkedIn leased 57,120 square feet on three floors of the One Montgomery Tower building in the Financial District of San Francisco, which was expanded to 135,000 square feet by 2014. In May 2012, LinkedIn announced its 2012 Q1 revenues were up to $188.5 million compared to $93.9 million in Q1 2011. Net income increased 140% over Q1 2011 to $5 million. Revenue for Q2 was estimated to be between $210 to $215 million.
In November 2012, LinkedIn released their third quarter earnings, reporting earnings-per-share of $0.22 on revenue of $252 million. As a result of these numbers, LinkedIn's stock increased in value, trading at roughly $112 a share.
In July 2012, LinkedIn acquired 15 key Digg patents for $4 million including “click a button to vote up a story” patent.
|1||August 4, 2010||mspoke||Adaptive personalization of content||USA||$0.6 Million||LinkedIn Recommendations|||
|2||September 23, 2010||ChoiceVendor||Social B2B Reviews||USA||$3.9 Million||Rate and review B2B service providers|||
|3||January 26, 2011||CardMunch||Social Contacts||USA||$1.7 Million||Scan and import business cards|||
|4||October 5, 2011||Connected||Social CRM||USA||-||LinkedIn Connected|||
|5||October 11, 2011||IndexTank||Social search||USA||-||LinkedIn Search|||
|6||February 22, 2012||Rapportive||Social Contacts||USA||$15 Million ||-|||
|7||May 3, 2012||SlideShare||Social Content||USA||$119 Million||Give LinkedIn members a way to discover people through content|||
|8||April 11, 2013||Pulse||Web / Mobile newsreader||USA||$90 Million||Definitive professional publishing platform|||
|9||February 6, 2014||Bright||Job Matching||USA||$120 Million|||
|10||July 14, 2014||Newsle||Web application||USA||-||Allows users to follow real news about their Facebook friends, LinkedIn contacts, and public figures.|||
|11||July 22, 2014||Bizo||Web application||USA||$175 Million||Helps advertisers reach businesses and professionals|||
|12||March 16, 2015||Careerify||Web application||Canada||-||Helps businesses hire people using social media|||
|13||April 2, 2015||Refresh.io||Web application||USA||-||Surfaces insights about people in your networks right before you meet them|||
|14||April 9, 2015||Lynda.com||eLearning||USA||$1.5 Billion||Lets users learn business, technology, software, and creative skills through videos|||
|15||August 28, 2015||Fliptop||Predictive Sales and Marketing Firm||USA||-||Using data science to help companies close more sales
It was settled in 2015 in favor of LinkedIn members. 
As of 2013, LinkedIn has more than 300 million members in over 200 countries and territories. It is significantly ahead of its competitors Viadeo (50 million) and XING (10 million). The membership grows by approximately two new members every second. With 20 million users, India has the fastest-growing network of users as of 2013.
|United States||93 million||29.90%|
|United Kingdom||14 million||22.41%|
User profile network
The basic functionality of LinkedIn allows users (workers and employers) to create profiles and "connections" to each other in an online social network which may represent real-world professional relationships. Users can invite anyone (whether a site user or not) to become a connection. However, if the invitee selects "I don't know" or "Spam", this counts against the inviter. If the inviter gets too many of such responses, the account may be restricted or closed.
This list of connections can then be used in a number of ways:
- Obtaining introductions to the connections of connections (termed second-degree connections) and connections of second-degree connections (termed third-degree connections)
- Users can find jobs, people and business opportunities recommended by someone in one's contact network.
- Employers can list jobs and search for potential candidates.
- Job seekers can review the profile of hiring managers and discover which of their existing contacts can introduce them.
- Users can post their own photos and view photos of others to aid in identification.
- Users can follow different companies and can receive notifications about the new joining[clarification needed] and offers available.
- Users can save (i.e. bookmark) jobs that they would like to apply for.
- Users can "like" and "congratulate" each other's updates and new employments.
- Users can see who has visited their profile page.
The "gated-access approach" (where contact with any professional requires either an existing relationship, or the intervention of a contact of theirs) is intended to build trust among the service's users. LinkedIn participates in the EU's International Safe Harbor Privacy Principles.
Security and technology
In June 2012, cryptographic hashes of approximately 6.4 million LinkedIn user passwords were stolen by hackers who then published the stolen hashes online. This action is known as the 2012 LinkedIn hack. In response to the incident, LinkedIn asked its users to change their passwords. Security experts criticized LinkedIn for not salting their password file and for using a single iteration of SHA-1.
To handle the large volume of emails sent to its users every day with notifications for messages, profile views, important happenings in their network, and other things, LinkedIn uses the Momentum email platform from Message Systems.
In October 2008, LinkedIn enabled an "applications platform" that allows other online services to be embedded within a member's profile page. Among the initial applications were an Amazon Reading List that allows LinkedIn members to display books they are reading, a connection to Tripit, and a Six Apart, WordPress and TypePad application that allows members to display their latest blog postings within their LinkedIn profile.
In November 2010, LinkedIn allowed businesses to list products and services on company profile pages; it also permitted LinkedIn members to "recommend" products and services and write reviews.
A mobile version of the site was launched in February 2008, which gives access to a reduced feature set over a mobile phone. The mobile service is available in six languages: Chinese, English, French, German, Japanese and Spanish.
In January 2011, LinkedIn acquired CardMunch, a mobile app maker that scans business cards and converts into contacts. In June 2013, CardMunch was noted as an available LinkedIn app. In August 2011, LinkedIn revamped its mobile applications on the iPhone, Android and HTML5. Mobile page views of the application have increased roughly 400% year over year according to CEO Jeff Weiner.
In October 2013, LinkedIn announced a service for iPhone users called "Intro", which inserts a thumbnail of a person's LinkedIn profile in correspondence with that person when reading mail messages in the native iOS Mail program. This is accomplished by re-routing all emails from and to the iPhone through LinkedIn servers, which security firm Bishop Fox asserts has serious privacy implications, violates many organizations' security policies, and resembles a man-in-the-middle attack.
LinkedIn also supports the formation of interest groups, and as of March 29, 2012 there are 1,248,019 such groups whose membership varies from 1 to 744,662. The majority of the largest groups are employment related, although a very wide range of topics are covered mainly around professional and career issues, and there are currently 128,000 groups for both academic and corporate alumni.
Groups support a limited form of discussion area, moderated by the group owners and managers. Since groups offer the ability to reach a wide audience without so easily falling foul of anti-spam solutions, there is a constant stream of spam postings, and there now exist a range of firms who offer a spamming service for this very purpose. LinkedIn has devised a few mechanisms to reduce the volume of spam, but recently took the decision to remove the ability of group owners to inspect the email address of new members in order to determine if they were spammers. Groups also keep their members informed through emails with updates to the group, including most talked about discussions within your professional circles.
Groups may be private, accessible to members only or may be open to Internet users in general to read, though they must join in order to post messages.
In December 2011, LinkedIn announced that they are rolling out polls to groups.
In November 2013, LinkedIn announced the addition of Showcase Pages to the platform. In 2014, LinkedIn announced they were going to be removing Product and Services Pages paving the way for a greater focus on Showcase Pages
LinkedIn allows users to research companies with which they may be interested in working. When typing the name of a given company in the search box, statistics about the company are provided. These may include the ratio of female to male employees, the percentage of the most common titles/positions held within the company, the location of the company's headquarters and offices, or a list of present and former employees.
In July 2011, LinkedIn launched a new feature allowing companies to include an "Apply with LinkedIn" button on job listing pages. The new plugin will allow potential employees to apply for positions using their LinkedIn profiles as resumes. All applications will also be saved under a "Saved Jobs" tab.
Job recruiters, head hunters, and HR personnel are increasingly using LinkedIn as a source for finding potential candidates. By using the Advanced search tools, recruiters can find members matching their specific key words with a click of a button. They then can reach out to those members by sending a request to connect or by sending InMail about a specific job opportunity he or she may have. Recruiters also often join industry based groups on LinkedIn to create connections with professionals in that line of business.
From September 2012, LinkedIn allows users to endorse each other's skills. This feature also allows users to efficiently provide commentary on other users profiles – network building is reinforced. However, there is no way of flagging anything other than positive content.
LinkedIn solicits endorsements based on algorithms that generate skills members might have. Members cannot opt out of such solicitations, with the result that it sometimes appears that a member is soliciting an endorsement for a non-existent skill.
LinkedIn continues to add different services to its platform to expand the ways that people use it. On May 7, 2015, LinkedIn added an analytics tool to its publishing platform. The tool allows authors to better track traffic that their posts receive.
The LinkedIn Influencers program launched in October 2012 and brings together 300+ of the world's top thought leaders to share their professional insights with LinkedIn's 259 million members. Influencer is an invite-only program that features notable leaders from a vast range of industries including Richard Branson, Narendra Modi, Arianna Huffington, Greg McKeown, Rahm Emanuel, Jamie Dimon, Martha Stewart, Deepak Chopra, Jack Welch, and Bill Gates.
Advertising and for-pay research
In mid-2008, LinkedIn launched LinkedIn DirectAds as a form of sponsored advertising.
In October 2008, LinkedIn revealed plans to open its social network of 30 million professionals globally as a potential sample for business-to-business research. It is testing a potential social network revenue model - research that to some appears more promising than advertising.
On July 23, 2013, LinkedIn announced their Sponsored Updates ad service. Individuals and companies can now pay a fee to have LinkedIn sponsor their content and spread it to their user base. This is a common way for social media sites such as LinkedIn to generate revenue.
Inspired by Facebook's "social graph", LinkedIn CEO Jeff Weiner set a goal in 2012 to create an "economic graph" within a decade. The goal is to create a comprehensive digital map of the world economy and the connections within it. The economic graph will be built on the company's current platform with data nodes including companies, jobs, skills, volunteer opportunities, educational institutions, and content. They hope to include all the job listings in the world, all the skills required to get those jobs, all the professionals who could fill them, and all the companies (nonprofit and for-profit) at which they work. The ultimate goal is to make the world economy and job market more efficient through increased transparency.
In June 2014, the company announced its "Galene" search architecture to give users access to the economic graph's data with more thorough filtering of data, via user searches like "Engineers with Hadoop experience in Brazil."
LinkedIn has used economic graph data to research several topics on the job market, including popular destination cities of recent college graduates, areas with high concentrations of technology skills, and common career transitions. LinkedIn provided the City of New York with data from economic graph showing “in-demand" tech skills for the city's "Tech Talent Pipeline" project. Similar data will be provided to a technology training project announced by President Obama in March 2015.
In January 2013, LinkedIn dropped support for LinkedIn Answers, and cited a new 'focus on development of new and more engaging ways to share and discuss professional topics across LinkedIn' as the reason for the retirement of the feature. The feature had been launched in 2007, and allowed users to post question to their network and allowed users to rank answers.
|This section does not cite any references (sources). (October 2015)|
LinkedIn derives its revenues from three business divisions:
Talent Solutions: Recruiters and corporations pay for:
- Branded corporate page on LinkedIn, complete with careers section.
- Pay per click-through Job ads that are targeted to LinkedIn users who match the job profile.
- Access to the database of LinkedIn users and resumes.
- LinkedIn advertisers pay for pay per click-through targeted ads.
Premium Subscriptions: LinkedIn users pay for:
- LinkedIn Business for business users
- LinkedIn Talent for recruiters
- LinkedIn JobSeeker for LinkedIn members looking for a job
- LinkedIn Sales for Sales Professionals.
Some elements of the various subscription services are also on a pay per use basis like InMail.
LinkedIn has been described by online trade publication TechRepublic as having "become the de facto tool for professional networking". LinkedIn has also been praised for its usefulness in fostering business relationships. "LinkedIn is, far and away, the most advantageous social networking tool available to job seekers and business professionals today," according to Forbes. The law suit was eventually settled in 2015 in favor of LinkedIn members. 
LinkedIn has also received criticism, primarily regarding e-mail address mining and auto-update.
- The sign up process includes a step for entering your email password (there is an opt-out feature). LinkedIn will then offer to send out contact invitations to all members in your address book or that you have had email conversation with. When the member's email address book is opened it is opened with all email addresses selected and the member is advised invitations will be sent to "selected" email addresses, or to all. Up to 1500 invitations can then be sent out in one click, with no possibility to undo or withdraw them. LinkedIn was sued for sending out another two follow-up invitations to each contact from members to link to friends who had ignored the initial, authorized, invitation. In November 2014, LinkedIn lost a motion to dismiss the lawsuit, in a ruling that the invitations were advertisements not broadly protected by free speech rights that would otherwise permit use of people's names and images without authorization.
- Changing the description below a member's name is seen as a change in a job title, even if it is just a wording change or even a change to "unemployed". Unless a member opts to "turn off activity updates", an update is sent to all of that person's contacts, telling them to congratulate the member on the "new job".
- The feature that allows LinkedIn members to "endorse" each other's skills and experience has been criticized as meaningless, since the endorsements are not necessarily accurate or given by people who have familiarity with the member's skills.
In 2009, Syrian users reported that LinkedIn server stopped accepting connections originating from IP addresses assigned to Syria. The company's customer support stated that services provided by them are subject to US export and re-export control laws and regulations and "As such, and as a matter of corporate policy, we do not allow member accounts or access to our site from Cuba, Iran, North Korea, Sudan, or Syria."
In February 2011, it was reported that LinkedIn was being blocked in China after calls for a "Jasmine Revolution". It was speculated to have been blocked because it is an easy way for dissidents to access Twitter, which had been blocked previously. After a day of being blocked, LinkedIn access was restored in China.
In February 2014, LinkedIn launched its Simplified Chinese language version named "领英" (pinyin: Lǐngyīng; literally: "leading elite"), officially extending their service in China. LinkedIn CEO Jeff Weiner acknowledged in a blog post that they would have to censor some of the content that users post on its website in order to comply with Chinese rules, but he also said the benefits of providing its online service to people in China outweighed those concerns.
The Search, Network, and Analytics (SNA) team at LinkedIn has a web site that hosts the open source projects built by the group. Notable among these projects is Project Voldemort, a distributed key-value structured storage system with low-latency similar in purpose to Amazon.com's Dynamo and Google's BigTable.
Surveillance and NSA Program
- "Financial Statements for LinkedIn Corp". Google Finance. Google. 2014. Retrieved Mar 5, 2015.
- "LinkedIn - About". LinkedIn Corporation. 2015. Archived from the original on August 1, 2013. Retrieved March 5, 2015.
- Reid Hoffman (May 5, 2013). "LinkedIn Turns 10: Celebrating 10 Years of Relationships That Matter". LinkedIn Blog. LinkedIn Corporation. Archived from the original on August 1, 2013. Retrieved August 1, 2013.
- "LinkedIn Technology". LinkedIn.com. Retrieved 2015-04-10.
- Eishay Smith (June 18, 2008). "LinkedIn is 99% Java but 100% Mac". Google Groups. Google. Archived from the original on August 1, 2013. Retrieved September 25, 2012.
- "Linkedin.com Site Info". Alexa Internet. Retrieved 2015-08-13.
- "LinkedIn Blog". LinkedIn.com. Retrieved 2015-10-29.
- Von Rosen, Viveka (2012). LinkedIn Marketing An Hour A Day. Indianapolis, Indiana: John Wiley & Sons Inc. p. 2. ISBN 9781118358702.
- "400 Million Members!". LinkedIn Blog. LinkedIn. October 29, 2015. Retrieved October 29, 2015.
- Hempel, Jessi (July 1, 2013). "LinkedIn: How It's Changing Business". Fortune. pp. 69–74.
- Posner, Nico (June 21, 2011). "Look who’s talking Russian, Romanian and Turkish now!". LinkedIn Blog. LinkedIn. Archived from the original on June 25, 2011. Retrieved June 21, 2011.
- "LinkedIn launches in Japan". TranslateMedia. October 20, 2011. Archived from the original on October 26, 2011. Retrieved November 13, 2011.
- "Linkedin.com Traffic and Demographic Statistics". Quantcast. Archived from the original on August 1, 2013. Retrieved August 1, 2013.
- "LinkedIn Q3 2013 Earnings Call". Slideshare.net. Retrieved 2015-10-06.
- Womack, Brian (July 8, 2011). "LinkedIn Passes Myspace to Become No. 2 U.S. Social Network". Bloomberg L.P. Archived from the original on November 30, 2011. Retrieved December 8, 2011.
- Pepitone, Julianne (January 27, 2011). "LinkedIn files for IPO, reveals sales of $161 million". CNNMoney.com (Cable News Network). Archived from the original on January 29, 2011. Retrieved January 28, 2011.
- "LinkedIn - Management". LinkedIn Corporation. Archived from the original on February 20, 2009. Retrieved December 7, 2009.
- "LinkedIn Secures $53M of Funding Led by Bain Capital Ventures" (Press release). LinkedIn. June 18, 2008. Archived from the original on August 1, 2013. Retrieved August 1, 2013.
- "LinkedIn Raises $12.8 Million from Bessemer Venture Partners and European Founders Fund to Accelerate Global Growth" (Press release). LinkedIn. January 29, 2007. Archived from the original on August 1, 2013. Retrieved August 1, 2013.
- "LinkedIn Premium Services Finding Rapid Adoption" (Press release). LinkedIn. March 7, 2006. Archived from the original on August 1, 2013. Retrieved August 1, 2013.
- Swisher, Kara (January 27, 2011). "Here Comes Another Web IPO: LinkedIn S-1 Filing Imminent". All Things Digital. Archived from the original on May 26, 2011. Retrieved January 27, 2011.
- "LinkedIn | Crunchbase Profile". CrunchBase. TechCrunch. Archived from the original on November 29, 2011. Retrieved December 8, 2011.
- Guynn, Jessica (June 18, 2008). "Professional networking site LinkedIn valued at $1 billion". The Los Angeles Times. Archived from the original on June 22, 2008. Retrieved August 1, 2013.
- "LinkedIn establishment of International Headquarters in Dublin welcomed by IDA Ireland" (Press release). IDA Ireland. March 23, 2010. Archived from the original on October 25, 2012. Retrieved August 2, 2013.
- Levy, Ari (July 28, 2010). "Tiger Global Said to Invest in LinkedIn at $2 billion Valuation". Bloomberg (Bloomberg L.P.). Archived from the original on December 29, 2011. Retrieved May 16, 2013.
- Hardy, Quentin (August 4, 2010). "LinkedIn Hooks Up". Forbes. Archived from the original on August 5, 2010. Retrieved August 5, 2010.
- "Does local beat global in the professional-networking business?". The Economist. November 19, 2009. Archived from the original on November 28, 2009. Retrieved August 5, 2010.
- Fusfeld, Adam (September 23, 2010). "2010 Digital 100 Companies 1–100". Business Insider. Archived from the original on December 13, 2010. Retrieved December 17, 2010.
- Demos, Telis; Menn, Joseph (January 27, 2011). "LinkedIn looks for boost with IPO". Financial Times. Retrieved January 28, 2011.(registration required)
- "Social Network Ads: LinkedIn Falls Behind Twitter; Facebook Biggest of All". Lunden, Ingrid January 31, 2012.
- "Stocks to Watch: Nuance Communications, LinkedIn, Merck and More". Thomson Maya and Pope-Chappell Maya February 13, 2012.
- "LinkedIn Expands into San Francisco". January 16, 2012. Sankin, Aaron.
- "LinkedIn leases 26-story S.F. skyscraper". SFGate. April 23, 2014. Retrieved October 17, 2014.
- "LinkedIn Beats The Street, Q1 Revenue Up 101 Percent To $188.5M; Net Income Up 140 Percent". May 4, 2012. Rao, Leena.
- B (2012-11-01). "LinkedIn Now Has 187 Million Members". Mashable.com. Retrieved 2015-10-06.
- Digg Sold To LinkedIn AND The Washington Post And Betaworks, TechCrunch.com, July, 2012
- "SEC S/1 Filing". SEC. 2011-11-03. Retrieved 2011-11-03.
- Schwartzel, Erich (2010-08-04). "CMU startup mSpoke acquired by LinkedIn". post-gazette. Retrieved 2010-08-04.
- "How Much Did LinkedIn Pay for ChoiceVendor". Quora. 2010-09-23. Retrieved 2011-03-11.
- "LinkedIn acquires ChoiceVendor". Bloomberg. 2010-09-23. Retrieved 2010-09-23.
- "LinkedIn S1 Filing". SEC. 2011-01-26. Retrieved 2012-02-24.
- Geron, Tomio (2011-10-05). "LinkedIn Acquires Social CRM Company Connected". Forbes. Retrieved 2011-10-05.
- "LinkedIn Buys Real-Time, Hosted Search Startup IndexTank". TechCrunch. 2011-10-11. Retrieved 2011-10-11.
- "Rapportive Announces Acquisition By LinkedIn". TechCrunch. 2012-02-12. Retrieved 2012-02-12.
- "LinkedIn acquires Rapportive Gmail Contact plugin". eweek. 2012-02-24. Retrieved 2012-02-24.
- "LinkedIn Is Buying SlideShare for $119 Million". Business Insider. 2012-05-03. Retrieved 2013-02-18.
- "LinkedIn Acquires Pulse For $90M In Stock And Cash". TechCrunch. 2013-04-11. Retrieved 2013-04-11.
- "LinkedIn makes its biggest acquisition by paying $120m for job matching service Bright". TNW. 2014-02-06. Retrieved 2014-04-20.
- "LinkedIn Acquires Start-Up Newsle". 2014-07-14. Retrieved 2014-07-23.
- Gelles, David (July 22, 2014). "LinkedIn Makes Another Deal, Buying Bizo". DealBook. New York Times. Retrieved 2015-01-14.
- Lunden, Ingrid (March 16, 2016). "LinkedIn Buys Careerify to Build out its Recruitment Business". Tech Crunch. Tech Crunch. Retrieved 2015-03-16.
- Ingrid, Lunden (2015-04-02). "LinkedIn Buys Refresh.io To Add Predictive Insights To Its Products". TechCrunch. Retrieved 2015-04-06.
- "LinkedIn just bought online learning company Lynda for $1.5 billion". Business Insider. 2015-04-09. Retrieved 2015-04-09.
- KOSOFF, MAYA (2015-04-09). "LinkedIn just bought online learning company Lynda for $1.5 billion". BusinessInsider. Retrieved 2015-04-09.
- "PacerMonitor Document View - 5:13-cv-04303 - Perkins et al v. LinkedIn Corporation, Docket Item 1" (PDF). Pacermonitor.com. 2013-09-17. Retrieved 2015-10-06.
- "LinkedIn settles class-action lawsuit - Business Insider". Business Insider. October 2, 2015. Retrieved October 3, 2015.
- "Now at 50m users, LinkedIn rival Viadeo acquires French startup Pealk and announces US innovation lab". January 14, 2013.
- "Facts and Figures". XING. September 1, 2010. Retrieved November 26, 2010.
- "LinkedIn now adding two members every second". TechCrunch.com. Retrieved October 31, 2011.
- "LinkedIn Statistics by country". March 3, 2012.
- 4 million members and counting: LinkedIn Australia finds connections get you places, BRW.com.au, March 14, 2013
- "Account Restricted | LinkedIn Help Center". Help.linkedin.com. 2013-12-20. Retrieved 2015-10-06.
- "LinkedIn Confirms Account Passwords Hacked". PC World.com. June 6, 2012. Retrieved June 6, 2012.
- Finkle, Jim and Jennifer Saba (June 6, 2012). "LinkedIn suffers data breach". Reuters. Retrieved June 7, 2012.
- "LinkedIn Just Added Two-Factor Authentication, So Enable It Now". Lifehacker.com. 2013-05-31. Retrieved 2015-10-06.
- "The biggest email provider you've never heard of". Fortune.com. Retrieved 2015-10-06.
- Facebook in a Suit: LinkedIn Launches Applications Platform, Business Week, October 28, 2008
- "LinkedIn Adopts 'Recommend' Over 'Like'", Clickz.com, November 2, 2010
- "Social-networking site LinkedIN introduces mobile version". tweakers.net. Retrieved February 25, 2008.
- CardMunch acquired by LinkedIn, shoutEx.com Feb 2011
- Geron, Tomio (August 16, 2011). "LinkedIn Revamps iPhone, Android Apps, Launches HTML5 App". Article. Retrieved August 17, 2011.
- "Announcement". Engineering.linkedin.com. 2013-10-23. Retrieved 2013-12-05.
- Fox, Bishop (2013-10-23). "LinkedIn 'Intro'duces Insecurity". Bishop Fox. Retrieved 2015-10-06.
- Fox, Bishop (2013-11-01). "An Introspection On Intro Security". Bishop Fox. Retrieved 2015-10-06.
- "Groups Directory". LinkedIn. Retrieved December 8, 2011.
- "World’s Largest LinkedIn Group Breaks The 700,000 Member mark". i-newswire.com. Retrieved February 28, 2012.
- "How to Avoid LinkedIn's Site Wide Automatic Moderation (SWAM)". Retrieved October 17, 2014.
- Lerner, Mark. "How To Avoid LinkedIn’s Site Wide Automatic Moderation". Oktopost. Retrieved 24 March 2014.
- "Groups". LinkedIn Corporation. Retrieved March 26, 2012.
- Wasserman, Todd (December 14, 2011). "LinkedIn polling".
- Pinkovezky, Aviad (November 19, 2013). "Announcing LinkedIn Showcase Pages".
- Everett, Paul (August 6, 2014). "LinkedIn Company Product & Services pages being discontinued".
- Levin, Valerie (June 29, 2014). "Crash Course: LinkedIn Showcase Pages 101".
- Colleen Taylor, GigaOm. "LinkedIn launches job application plugin." July 25, 2009. Retrieved July 25, 2011.
- Arnie Fertig. "6 Ways Recruiters Use LinkedIn to Headhunt". US News & World Report. Retrieved July 3, 2015.
- "What endorsements mean". NetworkComputing. Retrieved 29 April 2014.
- Taub, Eric A. (December 4, 2013). "The Path to Happy Employment, Contact by Contact on LinkedIn". The New York Times.
- By Ingrid Lunden, TechCrunch. “"Who's Viewed Your Posts?" LinkedIn Adds Analytics To Its Publishing Platform.” May 7, 2015. May 7, 2015.
- Rao, Leena. "LinkedIn Allows You To Follow Key Influencers On The Network; Will Eventually Make Feature Universal", TechCrunch, San Francisco, 2 October 2012. Retrieved on 19 July 2013.
- Kaufman, Leslie. "LinkedIn Builds Its Publishing Presence", The New York Times, New York,16 June 2013. Retrieved on 19 July 2013.
- "LinkedIn Direct Ads vs Google Adwords". Shoutex.com. Retrieved 2015-10-06.
- LinkedIn's promising new revenue model: sending you surveys. By: Neff, Jack, Advertising Age, 00018899, 10/27/2008, Vol. 79, Issue 40. Database: Business Source Complete
- "LinkedIn Expands Ad Program With Launch Of Sponsored Updates Program". Techcruch.com. Retrieved 2015-10-06.
- Steve Kovach for Business Insider. Nov. 27, 2012 Jeff Weiner Just Revealed A Surprising Long-Term Vision For LinkedIn
- Rachel King for ZDNet's Between the Lines. September 9, 2013 LinkedIn's long-term plan? Build the 'world's first economic graph,' says CEO
- Tomio Geron for Forbes. September 9, 2013. Jeff Weiner: LinkedIn Is Building A Massive Global 'Economic Graph'
- Ingrid Lunden for TechCrunch. Jan 15, 2014 LinkedIn Expands Its Jobs Database With A New Volunteer Marketplace For Unpaid Non-Profit Work
- Bill Chappell for NPR's the two-way. August 19, 2013 University Pages: LinkedIn Launches New College Profiles
- Harrison Weber for VentureBeat. June 5, 2014 LinkedIn launches ‘Galene’ search architecture to build the first ‘economic graph’
- Rachel King for ZDNet's Between the Lines. June 5, 2014 LinkedIn plans to reinvent search in order to map its economic graph
- "The most attractive cities worldwide for new graduates - Quartz". Qz.com. 2014-06-04. Retrieved 2015-10-06.
- "Where Is the Top City to Spot Tech Talent? - Digits - WSJ". Blogs.wsj.com. 2014-06-24. Retrieved 2015-10-06.
- "Oh, the Places You’ll Go! (Or Not.) - At Work - WSJ". Blogs.wsj.com. 2014-12-08. Retrieved 2015-10-06.
- "LinkedIn Economic Graph Research: Helping New Yorkers Connect With The Jobs Of Tomorrow [INFOGRAPHIC]". Retrieved July 3, 2015.
- Amrita Jayakumar (March 15, 2015). "How big data could make job-hunting less stressful". Washington Post. Retrieved July 3, 2015.
- Todd Wasserman for Mashable. Jan 17, 2013 LinkedIn will pull the plug on LinkedIn Answers, its Quora-like Q&A service, on Jan. 31
- "Five Benefits of LinkedIn for Organizations (and IT Pros) | TechRepublic." Web. May 9, 2011.
- "LinkedIn.com, a business-orientated networking site, can be an ideal way for professionals to present an online profile of themselves ... Unlike social networking sites, [with] LinkedIn you're outlining all your credentials; presenting the professional rather than the personal you. Considering the sheer vastness of the digital space, the potential for building up a solid base of contacts and fostering new business relationships is boundless." O'Sullivan, James (2011), "Make the most of the networking tools that are available", Evening Echo, May 9, 2011. Pg 32. Note that the Evening Echo is located close to the European headquarters of LinkedIn
- Foss, Jenny (July 6, 2012). "Your LinkedIn Intervention: 5 Changes You Must Make". Forbes.
- "LinkedIn settles class-action lawsuit - Business Insider". Business Insider. October 2, 2015. Retrieved October 3, 2015.
- LinkedIn sued over 'hacking' address books to send spam marketing emails, Daily Mail
- LinkedIn to face lawsuit for spamming users' email address books, BetaNews
- LinkedIn is “breaking into” user emails, spamming contacts – lawsuit, Gigaom.com
- "Judge Rejects LinkedIn's Free-Speech Argument In Battle Over Email Invitations". Retrieved July 3, 2015.
- "How LinkedIn can thwart your job search". Forbes. Retrieved 29 April 2014.
- "All you need to know about endorsements". Forbes. Retrieved 29 April 2014.
- "Syria: Linkedin Kicks Off Syrian Users!". Global Voices Advocacy. April 18, 2009. Retrieved April 30, 2010.
- Ungerleider, Neal (February 25, 2011). "China blocks access to LinkedIn". Fast Company. Retrieved February 25, 2011.
- Baker, Liana (February 25, 2011). "LinkedIn website working again in China". Reuters.
- Oreskovic, Alexei (25 Feb 2014). "LinkedIn jumpstarts China expansion with Chinese language site". Reuters. Retrieved 29 March 2014.
- "专业社交网站LinkedIn推出中文版". BBC Chinese. 25 February 2014. Retrieved 29 March 2014.
- Jeff Weiner (24 February 2014). "LinkedIn in China: Connecting the World's Professionals". Linkedin official blog. Retrieved 29 March 2014.
- "SNA-projects.com". SNA-projects.com. August 11, 2011. Retrieved December 8, 2011.
- "Project-voldemort.com". Project-voldemort.com. Retrieved December 8, 2011.
- "NSA Infected 50,000 Computer Networks for Surveillance". SecurityWeek Network. Retrieved November 25, 2013.