|Traded as||NYSE: YELP|
|Industry||Business ratings and reviews|
|Headquarters||San Francisco, California, United States|
|Jeremy Stoppelman, Co-founder/CEO, Russel Simmons, Co-founder/CTO, and Geoff Donaker, COO|
|Products||web-based urban guide|
|Revenue||US$ 377.5 million (2014)|
Number of employees
|2,711 (December 2014)|
Yelp is a multi-national corporation headquartered in San Francisco, California. It develops, hosts and markets Yelp.com and the Yelp mobile app, which publish crowd-sourced reviews about local businesses, as well as online reservation service SeatMe and food delivery service Eat24. The company also trains small businesses to respond to reviews responsibly, hosts social events for reviewers, and provides data about businesses, such as health inspection scores.
Yelp was founded in 2004 by former Paypal employees at the startup incubator MRL Ventures. It was initially an unsuccessful email-based referral service, but was re-launched on the basis of unsolicited online reviews in late 2005. Yelp grew quickly and raised several rounds of funding. By 2010 it had $30 million in revenues and the website had published more than 4.5 million crowd-sourced reviews. From 2009–2012, Yelp expanded throughout Europe and Asia. In 2009 it entered negotiations with Google for a potential acquisition, but a deal was never reached. Yelp became a public company in March 2012 and became profitable for the first time two years later. As of 2014, Yelp.com has 135 million monthly visitors and 71 million reviews. The company's revenues come from businesses being reviewed on the site paying to advertise.
According to BusinessWeek, Yelp has "always had a complicated relationship with small businesses." Some of the disputes between Yelp and business owners are regarding businesses that fraudulently write reviews on their own locations, accusations of Yelp manipulating reviews to extort advertising spend, concerns about the authenticity of reviews as well as the privacy and freedom of speech of reviewers.
Two former PayPal employees, Jeremy Stoppelman and Russel Simmons, founded Yelp at a business incubator, MRL Ventures, in 2004. Stoppelman and Simmons conceived the initial idea for Yelp as an email-based referral network, after Stoppelman caught the flu and had a difficult time finding an online recommendation for a local doctor. The co-founders' former colleague from PayPal and founder of MRL Ventures, Max Levchin, provided $1 million in initial funding. MRL co-founder David Galbraith, who instigated the local services project based on user reviews, came up with the name "Yelp". According to Fortune Magazine, Yelp's initial email-based system was "convoluted". The idea was rejected by investors and did not attract users beyond the cofounders' friends and family. Usage data showed that users were not answering requests for referrals, but were using the "Real Reviews" feature, which allowed them to write reviews unsolicited.
According to the San Francisco Chronicle, "the site's popularity soared" after it was re-designed in late 2005. Yelp raised $5 million in funding in 2005 from Bessemer Ventures and $10 million in November 2006 from Benchmark Capital. The number of reviewers on the site grew from 12,000 in 2005, to 100,000 in 2006. By the summer of 2006, the site had one million monthly visitors. It raised $15 million in funding from DAG Ventures in February 2008. In 2010, Elevation Partners invested $100 million; $75 million was spent on purchasing equity from employees and investors, while $25 million was invested in sales staff and expansion. Yelp grew from six million monthly visitors in 2007 to 16.5 million in 2008 and from 12 to 24 cities during the same time period. By 2009, the site had 4.5 million reviews. By 2010, Yelp's revenues were estimated to be $30 million and it employed 300 people.
Private company (2009–2011)
Yelp introduced a site for the United Kingdom in January 2009 and one for Canada that August. The first non-English Yelp site was introduced in France in 2010; users had the option to read and write content in French or English. From 2010 to 2011, Yelp launched several more sites, in Austria, Germany, Spain and the Netherlands. International website traffic doubled during the same time period. An Australia website went live in November 2011. The Australian website was supported through a partnership with Telstra, which provided one million initial business listings, and was initially glitchy. Yelp had a presence in 20 countries by the end of 2012, including Turkey and Denmark. Yelp's first site in Asia was introduced in September 2012 in Singapore.
In December 2009, Google entered into negotiations with Yelp to acquire the company, but the two parties failed to reach an agreement. According to The New York Times, Google offered more than $500 million, but the deal fell through after Yahoo offered $1 billion. Tech Crunch reported that Google refused to match Yahoo's offer. Both offers were later abandoned following a disagreement between Yelp's management and board of directors about the offers.
Yelp began a service called Yelp Deals in April 2011, but by August it cut back on Deals due to increased competition and market saturation. That September, the Federal Trade Commission investigated Yelp's allegations that Google was using Yelp web content without authorization and that Google's search engine algorithms favored Google Places over similar services provided by Yelp. In a January 2014 agreement, Google was not subject to anti-trust litigation from the FTC, but did have to allow services like Yelp the ability to opt out of having their data scraped and used on Google's websites.
Public entity (2011 – present)
In November 2011, Yelp filed for an initial public offering (IPO) with the Securities Exchange Commission. On March 2, 2012, the company's stock began public trading on the New York Stock Exchange at a share price of $15, valuing the company at $898 million. In 2012, Yelp agreed to acquire its largest European rival, Qype, for $50 million. The following year, CEO Jeremy Stoppelman reduced his salary to $1. Yelp acquired the start-up online reservation company SeatMe for $12.7 million in cash and company stock in 2013. Yelp's second quarter 2013 revenue "exceeded expectations", but the company was not yet profitable.
The company was profitable for the first time in the second quarter of 2014, as a result of increasing advertising spend by business owners and potentially due to changes in Google's algorithm increasing traffic. Over the course of the year, Yelp websites were launched in Mexico, Japan and Argentina. Also in 2014, Yelp expanded in Europe through the acquisitions of German-based restaurant review site Restaurant-Kritik and France-based CityVox.
After a precipitous drop from over $100 to $50 over three months in early 2014, by May there were sympathetic reviews indicating it had been adequately corrected  and less sympathetic reviews referring to its valuation as "ridiculous"  based on forward price–sales ratio analysis:
- "revenue of $1.39 billion by 2019 ... gives it a forward price-to-sales ratio of 3. ... If we discount 15% for share appreciations ... and 5% for the dilution we actually find out that Yelp's forward price-to-sales ratio is actually 9 even if it meets all the analyst goals."
In early February 2015 Yelp expected sales in the first quarter of 2015 "to be in the range of $118.5 million to $120.5 million, and for the fiscal 2015 year...$574 million to $579 million". Even fter a 7 percent one day leap its shares stood at only $45.30, far below Forbes' estimate of eight months earlier 
|Slogan||Real People. Real Reviews.|
Type of site
|Local online reviews|
|Available in||15 languages|
|Users||132 million unique visitors per month|
|Written in||Python, Java and a custom framework|
|125 global, 28 in the United States (October 2014[update])|
Yelp's website, Yelp.com, is a crowd-sourced local business review and social networking site. Its user community is primarily active in major metropolitan regions. The site has pages devoted to individual locations, such as restaurants or schools, where Yelp users can submit a review on their products or services using a one to five star rating system. Businesses can also update contact information, hours and other basic listing information or add special deals. In addition to writing reviews, users can react to reviews, plan events or discuss their personal lives. According to Sterling Market Intelligence, Yelp is "one of the most important sites on the Internet." It has 132 million monthly visitors and 57 million reviews. As of 2010, Yelp had an established user-base in 33 cities.
85 percent of small businesses listed on the site have a rating of three stars or better, but some negative reviews are very personal or extreme. Many reviews are written in an entertaining or creative manner. Users can give a review a "thumbs-up" if it is "useful, funny or cool." Each day a "Review of the Day" is determined based on a vote by users.
As of 2012, 45 percent of Yelp searches are done from a mobile device. The Yelp iPhone app was introduced in December 2008. In August 2009, Yelp released an update to the iPhone app with a hidden Easter Egg augmented reality feature called Monocle, which allowed users looking through their iPhone camera to see Yelp data on businesses seen through the camera. Check-in features were added in 2010.
Yelp users can make restaurant reservations in Yelp through OpenTable, a feature added in June 2010. In 2013, features to have food ordered and delivered were added to Yelp as well as the ability to view hygiene inspection scores and make appointments at spas. Yelp's content was integrated into the mapping and directions app of Apple's September 2012 release of iOS 6. Yelp also has features for finding local businesses offering special deals to Yelp users. In October 2014, features were added through a partnership with hotel search site Hipmunk to book hotels through Yelp.
Features for businesses
Yelp added the ability for business owners to respond to reviews in 2008. Businesses can respond privately by messaging the reviewer or publicly on their profile page. In some cases, Yelp users that had a bad experience have updated their reviews more favorably due to the businesses' efforts to make it right. In other cases disputes between reviewers and business owners have led to harassment and physical altercations. The system has led to criticisms that business owners can bribe reviewers with free food or discounts to increase their rating, though Yelp users say this rarely occurs. A business owner can "claim" a profile, which allows them to respond to reviews and see traffic reports. Businesses can also offer discounts to Yelp users that visit often using the "check in" feature. In 2014, Yelp released an app for business owners to respond to reviews and manage their profiles from a mobile device. Business owners can also flag reviews to be removed, if they violate Yelp's content guidelines.
Yelp's revenues come from selling ads and sponsored listings to small businesses. As of 2010, Yelp has 150 salespeople. Advertisers can pay to have their listing appear at the top of search results, or feature ads on the pages of their competitors. As of 2013, advertising revenue was growing at a rate of 77% per year. Yelp will only allow businesses with at least a three-star rating to sign up for advertising. Originally a sponsored "favorite review" could place a positive review above negative ones, but Yelp stopped offering this option in 2010 in an effort to deter misconceptions that advertisers were able to marginalize negative reviews for pay.
Relationship with businesses
A Harvard Business School study published in 2011 found that each "star" in a Yelp rating affected the business owner's sales by 5–9 percent. A 2012 study by two Berkeley economists found that an increase from 3.5 to 4 stars on Yelp resulted in a 19 percent increase in the chances of the restaurant being booked during peak hours. A 2014 survey of 300 small business owners done by Yodle found that 78 percent were concerned about negative reviews. Also, 43 percent of respondents said they felt online reviews were unfair, because there is no verification that the review is written by a legitimate customer.
As Yelp became more influential, the practice of fake reviews written by competitors or business owners became more prevalent. A study from Harvard professor Michael Luca analyzed 316,415 reviews in Boston and found that fake reviews rose from 6% of the site's reviews in 2006 to 20% in 2014. Yelp's own review filter identifies 25 percent of reviews as suspicious.
Yelp also conducts "sting operations" to uncover businesses writing their own reviews. In October 2012, Yelp placed a 90-day "consumer alert" on 150 business listings believed to have paid for reviews. The alert read "We caught someone red-handed trying to buy reviews for this business". In June 2013, Yelp filed a lawsuit against BuyYelpReview/AdBlaze for allegedly writing fake reviews for pay. In 2013 Yelp sued a lawyer it alleged was part of a group of law firms that exchanged Yelp reviews, saying that many of the firm's reviews originated from their own office. The lawyer said Yelp was trying to get revenge for his own legal disputes and activism against Yelp. An effort to win dismissal of the case was denied in December 2014. In September 2013, Yelp cooperated with Operation Clean Turf, a sting operation by the New York Attorney General that uncovered 19 astroturfing operations.
Alleged manipulation by Yelp
According to BusinessWeek, Yelp has "always had a complicated relationship with small businesses." Throughout much of Yelp's history there have been allegations that Yelp has manipulated their website's reviews based on participation in its advertising programs. Many business owners say Yelp salespeople offered to remove or suppress negative reviews if they purchase advertising. Others report seeing negative reviews featured prominently and positive reviews buried; soon after, they would receive calls from Yelp attempting to sell paid advertising. Yelp says its sales staff do not have the ability to modify reviews and that changes in the reviews are caused by its automated filter.
Several lawsuits have been filed against Yelp accusing it of extorting businesses into buying advertising products. Each have been dismissed by a judge before reaching trial. In early 2010, a class-action lawsuit was filed against Yelp alleging it asked a Long Beach veterinary hospital to pay $300 a month for advertising services that included the suppression or deletion of disparaging customer reviews. The following month, nine additional businesses joined the class-action lawsuit, and two similar lawsuits were filed. That May the lawsuits were combined into one class-action lawsuit, which was dismissed by San Francisco U.S. District Judge Edward Chen in 2011. Chen said the reviews were protected by the Communications Decency Act of 1996 and that there was no evidence of manipulation by Yelp. The plaintiffs filed an appeal. In September 2014 the Ninth U.S. Circuit Court of Appeals upheld the dismissal, finding that even if Yelp did manipulate reviews to favor advertisers, this would not fall under the court's legal definition of extortion.
In August 2013, Yelp launched a series of town hall style meetings in 22 major American cities in an effort to address concerns among local business owners. Many attendees expressed frustrations with Yelp's automated filter removing positive reviews after they decline to advertise, receiving reviews from users that never entered the establishment, and other issues. A 2011 Harvard study by Michael Luca found that there was no significant statistical correlation between being a Yelp advertiser and having more favorable reviews. The Federal Trade Commission received 2,046 complaints about Yelp from 2008 to 2014, mostly from small businesses regarding allegedly unfair or fake reviews or negative reviews that appear after declining to advertise. According to Yelp, the Federal Trade Commission finished a second examination of Yelp's practices in 2015 and in both cases did not pursue an action against the company.
Yelp also came into criticism by the Los Angeles Times in 2014 for the practice of selling competitor's ads to run on top of business listings, and allegedly offering to have the ads removed for a $75 monthly fee.
According to Inc. Magazine most reviewers (sometimes called "Yelpers") are "well-intentioned" and write reviews in order to express themselves, improve their writing, or be creative. In some cases, they write reviews in order to lash out at corporate interests or businesses they dislike. Reviewers may also be motivated by badges and honors, such as being the first to review a new location, or by praise and attention from other users. Many reviews are written in an entertaining or creative manner. Users can give a review a "thumbs-up" if it is "useful, funny or cool." Each day a "Review of the Day" is determined based on a vote by users. According to The Discourse of Online Consumer Reviews many Yelp reviewers are internet-savvy adults aged 18–25 or "suburban baby boomers".
Reviewers are encouraged to use real names and photos. Each year members of the Yelp community are invited to the "Yelp Elite Squad," based on an evaluation of their reviews. Users must also use their real name and photo on Yelp to qualify for the Elite Squad. They are governed by a council and estimated to have several thousand members. Yelp does not disclose on how the Yelp Elite are selected. The Yelp Elite Squad was initially formed in 2005, when Jeremy Stoppelman joking referred to prolific reviewers that were invited to Yelp parties as the "Yelp Elite Squad." Members are invited to special opening parties, given gifts and receive other perks. Businesses host parties for the Yelp Elite as a way of getting reviews. As of 2011, there were 60 local Elite Squads, mostly in North America and Europe.
Yelp receives about six subpoenas a month asking for the names of anonymous reviewers, mostly from business owners seeking litigation against those writing negative reviews. In 2012 the Alexandria Circuit Court and the Virginia Court of Appeals held Yelp in contempt for refusing to disclose the identities of seven reviewers that anonymously criticized a carpet-cleaning business; in 2014 Yelp appealed to the Supreme Court. Six internet companies and the Electronic Frontier Foundation said a ruling against Yelp would negatively effect free speech online. The judge from an early ruling said that if the reviewers did not actually use the businesses' services, their communications would be false claims not protected by free speech laws. In 2014 a US law was passed that prohibited businesses from using "disparagement clauses" in their contracts of terms or use that allege they can sue or fine customers that write negatively about them online.
As of 2010, Yelp employed a staff of 40 community managers that organize parties for prolific reviewers, send encouraging messages to reviewers and host classes for small business owners. Yelp reviewers are not required to disclose their identity, but Yelp encourages them to do so. After leaving a negative review a user may say "you've been Yelped", while businesses with positive reviews advertise with "People Love us on Yelp!".
- Yelp Fact Sheet, Yelp, retrieved April 1, 2015
- Clark, Patrick (September 9, 2013). "Yelp's Newest Weapon Against Fake Reviews : Lawsuits". Bloomberg BusinessWeek. Retrieved July 1, 2014.
- Rubin, Courtney (November 30, 2011). "Yelp Goes Live in Australia as It Prepares for IPO". Inc. Magazine. Retrieved January 5, 2013.
- Jeffrey M. O'Brien (July 10, 2007). "Yelp's Ambitious Plan to Take Over the Local Ad Market". CNNMoney.com. p. 2. Retrieved July 28, 2013.
- Loten, Angus (November 14, 2012). "Search for Doctor Leads to Yelp". The Wall Street Journal. Retrieved June 30, 2014.
- Graham, Jefferson (June 12, 2007). "'Yelpers' review local businesses". USA Today. Retrieved August 19, 2008.
- My Big Break: Yelp's 'Aha' moment, NewsWeek, October 21, 2009, retrieved February 15, 2013
- Malik, Om (March 2, 2012). "What do Yelp and Twitter have in common?". Giga Om. Retrieved March 15, 2013.
- Chafkin, Max (February 1, 2010). "You've Been Yelped". Inc. Magazine. Retrieved January 6, 2013.
- Heather Maddan (June 18, 2006). "Casting the Net:Yelp is on the way". San Francisco Chronicle. Retrieved November 27, 2013.
- McCarthy, Caroline (February 27, 2008). "Yelp yanks another $15 million". CNET. Retrieved August 19, 2008.
- McCarthy, Megan (February 2, 2008). "A Mighty Yelp! Review Site Gets $15M". Wired Magazine. Retrieved October 1, 2008.
- MacMilan, Douglas; Peter Burrows (January 27, 2010). "Yelp Gets Up to $100 Million From Elevation Partners". BusinessWeek. Retrieved January 6, 2013.
- Miller, Claire (January 8, 2009). "Yelp Jumps the Pond". The New York Times. Retrieved June 30, 2014.
- Kiss, Jemima (January 7, 2009). "Reviews site Yelp is coming to the UK – and bringing the parties". The Guardian. Retrieved January 6, 2013.
- Miller, Claire (May 5, 2010). "Bon Appétit! Yelp Goes to France". The New York Times. Retrieved January 6, 2013.
- Schonfeld, Erick (May 21, 2011). "Yelp Moves To Spain As International Traffic Doubles". TechCrunch. Retrieved January 6, 2013.
- Griffith, Chris (November 30, 2011). "Review site Yelp goes live in Australia". The Australian. Retrieved January 4, 2012.
- Apostolou, Natalie (November 30, 2011). "Yelp lands in Aus with some help from Telstra". The Register. Retrieved January 6, 2013.
- Musli, Steve (Dec 12, 2012). "Yelp takes its reviews to Turkey". CNET. Retrieved November 13, 2013.
- McNichol, Tom (Fall 2012). "Word On the Street". NYSE magazine. Retrieved September 15, 2013.
- MacMillan, Douglas (December 18, 2009). "Google Bids for Yelp's Online Local Ad Communities". Businessweek. Retrieved January 6, 2012.
- Miller, Claire (December 18, 2009). "Google Said to Be Near a Yelp Deal". The New York Times. Retrieved January 6, 2013.
- Miller, Claire Cain (Dec 21, 2009). "Yelp Turns Down Google, for Now". New York Times. Retrieved July 18, 2013.
- Caroline McCarthy (December 21, 2009). "Yelp bails on Google deal?". CNET. Retrieved January 6, 2013.
- Kucera, Danielle (March 2, 2012). "Yelp's Stoppelman Leads IPO by Snubbing Google, Yahoo Offers". Bloomberg. Retrieved September 25, 2013.
- Arrington, Michael (October 1, 2010). "The Ugliest Girl at the Dance: How Yahoo Destroyed Yelp's Google Acquisition". TechCrunch. Retrieved March 19, 2013.
- Schonfeld, Erick (June 29, 2011). "Yelp Brings Local Deals to Mobile and Gives Groupon Now a Run for its Money". TechCrunch. Retrieved March 10, 2013.
- MacMillan, Douglas (August 30, 2011). "Yelp Follows Facebook in Scaling Back Daily-Deal Service". Bloomberg. Retrieved March 11, 2013.
- Cheredar, Tom (September 21, 2011). "Yelp cooperating with FTC on antitrust lawsuit against Google". VentureBeat. Retrieved January 6, 2013.
- Angotti, David (September 21, 2011). "Yelp Hopes to Serve Grilled Google: Antitrust Hearing Today". Search Engine Journal. Retrieved January 6, 2012.
- Paul, Ian (January 4, 2013). "Google's FTC antitrust deal: Top takeaways and challenges". PC World. Retrieved July 4, 2014.
- Rusli, Evelyn (November 17, 2011). "Yelp Files for I.P.O.". The New York Times. Retrieved January 6, 2013.
- MacMillan, Douglas (November 17, 2011). "Yelp Files to Raise $100 Million in Initial Public Offering". BusinessWeek. Retrieved January 6, 2013.
- Rusli, Evelyn (March 1, 2012). "Yelp Prices Its Offering at $15 a Share". The New York Times. Retrieved January 6, 2013.
- Pepitone, Julianne (March 2, 2012). "Yelp shares soar more than 60% in IPO". CNN Money. Retrieved January 6, 2013.
- Grove, Jennifer (February 8, 2013). "Yelp CEO takes $1 Salary". CNET. Retrieved February 14, 2013.
- Milot, Stephanie (July 19, 2013). "Yelp Buys Online Reservation Service SeatMe". PC Magazine. Retrieved September 13, 2013.
- Roberts, Daniel (Sep 19, 2013). "Yelp CEO Jeremy Stoppelman ignored advice from Peter Thiel and Elon Musk and succeeded anyway". CNN. Retrieved September 25, 2013.
- Simonson, Sharon (August 19, 2013). "Yelp Occupies 140 New Montgomery". The Registry SF. Retrieved February 8, 2015.
- Crum, Chris (July 30, 2014). "Yelp Becomes Profitable For First Time Since Going Public". WebProNews. Retrieved September 1, 2014.
- Marx, Rebecca (July 28, 2014). "The Toxic, Abusive, Addictive, Supportive, Codependent Relationship Between Chefs and Yelpers". San Francisco Magazine.
- Snyder, Benjamin (October 28, 2014). "Yelp makes Europe its mission with back-to-back acquisitions". Fortune Magazine. Retrieved November 13, 2014.
- Chandler, Michele (October 28, 2014). "Yelp Says Oui, Adds French Online Review Site Cityvox". Investors Business Daily. Retrieved November 13, 2014.
- Marx, Rebecca (July 28, 2014). "The Toxic, Abusive, Addictive, Supportive, Codependent Relationship Between Chefs and Yelpers". San Francisco Magazine.
- "Yelp.com Site Info". Alexa Internet. Retrieved 2014-10-08.
- Metz, Cade (August 13, 2008). "Yelp 'pay to play' pitch makes shops scream for help". The Register. Retrieved August 20, 2008.
- About Us, Yelp, retrieved June 30, 2014
- Banks, Sandy (April 20, 2013). "Turning a critical eye on Yelp". Los Angeles Times. Retrieved June 1, 2014.
- McNeil, Donald G. (November 4, 2008). "Eat and Tell". New York Times. Retrieved November 6, 2011.
- Schonfeld, Erick (December 10, 2008). "Citysearch vs. yelp on the iPhone: Can You Tell Them Apart?". TechCrunch. Retrieved April 7, 2013.
- Chen, Brian (August 27, 2009). "Yelp Sneaks Augmented Reality Into iPhone App". Wired Magazine. Retrieved January 6, 2013.
- Ingram, Mathew (January 22, 2010). "Yelp Fights Back Against Foursquare, Gowalla". Giga Om. Retrieved January 6, 2013.
- Diana, Alison (November 23, 2010). "Yelp Intros Check In Offers". InformationWeek. Retrieved January 6, 2013.
- "Yelp to allow restaurant reservations through site". Associated Press. June 3, 2010. Retrieved January 5, 2013.
- Bilton, Nick (June 3, 2010). "Yelp and OpenTable Join Forces". The New York Times. Retrieved January 6, 2013.
- Hsu, Tiffany (July 9, 2013). "Yelp launches food delivery and pickup service". LA Times. Retrieved September 13, 2013.
- Bindley, Katherine (January 17, 2013). "Yelp Adds Health Department Grades to Restaurant Listings". The Huffington Post. Retrieved February 14, 2013.
- Brennan, Emily (October 24, 2014). "On Yelp, Reviews With a Side of Bookings". The New York Times. Retrieved October 31, 2014.
- Grove, Jennifer (September 19, 2012). "You may hate Apple Maps, but the Yelp integration is something to love". VentureBeat. Retrieved January 10, 2013.
- Schonfeld, Erick (June 29, 2011). "Yelp Brings Local Deals To Mobile And Gives Groupon Now A Run For Its Money". Tech Crunch. Retrieved May 21, 2014.
- Saul Hansell (May 12, 2008). "Why Yelp Works". New York Times. Retrieved November 27, 2013.
- Hernandez, Barbara (December 18, 2014). "Yelp Gives Business Owners Stronger Voice". NBC Bay Area. Retrieved December 19, 2014.
- "How do I flag a review".
- Kelleher, Kevin (August 5, 2013). "Finally, web IPOs have something to Yelp about". CNN. Retrieved September 27, 2013.
- Eaton, Kit (April 5, 2010). "Yelp Tweaks Its System for Transparency—and Lawsuit-Dodging". Fast Company. Retrieved January 6, 2013.
- Chang, Andrea (April 6, 2010). "Yelp makes two major changes in the way reviews are posted". Los Angeles Times. Retrieved January 6, 2013.
- Tom Gara (September 24, 2013). "Fake Reviews Are Everywhere. How Can We Catch Them?". Wall Street Journal.
- Loten, Angus (April 2, 2014). "Yelp Regularly Gets Subpoenas About Users". The Wall Street Journal.
- Jamie Doward (September 1, 2012). "How online reviews are crucial to a restaurant's takings". The Guardian. Retrieved November 27, 2013.
- Roberts, Daniel (Sep 26, 2013). "Yelp's fake review problem". CNN Money. Retrieved September 27, 2013.
- Ma Evelyn Castino Quilas (June 19, 2014). "Sia Furler Seeks Revenge on Twitter and Yelp after Dry Cleaning Staff Ruins Fave Clothes". International Business Times. Retrieved July 1, 2014.
- "Yelp CEO Jeremy Stoppelman Reveals How The Review Site Catches Phonies (VIDEO)Posted". The Huffington Post. December 3, 2012.
- Streitfeld, David (Oct 18, 2012). "Buy Reviews on Yelp, Get Black Mark". The New York Times. Retrieved November 27, 2013.
- Vega, Cecilia. "Yelp Outs Companies That Pay for Positive Reviews". ABC News. Retrieved 6 June 2013.
- Whitehouse, Kaja (Oct 19, 2012). "Yelp outs pay-per-review businesses". New York Post. Retrieved September 27, 2013.
- Pimental, Benjamin (September 18, 2013). "Yelp steps up campaign against fake reviews". WSJ MarketWatch. Retrieved September 27, 2013.
- Kim, Suzanna (September 17, 2013). "Yelp Sues Firm Over Allegedly Posting Fake Review". ABC News. Retrieved September 27, 2013.
- Farivar, Cyrus (December 10, 2014). "Bizarre Yelp lawsuit over alleged fake reviews to finally move ahead". ars technica. Retrieved January 12, 2015.
- Chang, Andrea (August 21, 2013). "Tempers flare at Yelp's town hall for small business owners in L.A.". LA Times. Retrieved September 16, 2013.
- Harris, Sophia (January 14, 2015). "Yelp accused of bullying businesses into paying for better reviews". CBC News. Retrieved January 15, 2015.
- West, Jackson (March 1, 2010). "Yelp Blames Greedy Lawyers for Extortion Allegations". BusinessWeek. Retrieved January 6, 2013.
- Kim Zetter (February 24, 2010). "Yelp Accused of Extortion". Wired Magazine. Retrieved January 6, 2013.
- Ali, Sarmad (March 17, 2010). "Small Businesses Join Lawsuit Against Yelp". The Wall Street Journal. Retrieved January 3, 2013.
- Metz, Rachel (March 19, 2010). "Review site Yelp under fire in business' lawsuits". BusinessWeek. Retrieved January 6, 2013.
- Davis, Wendy (May 4, 2012). "Business Owners Seek To Revive Payola Lawsuit Against Yelp". Media Post Publications. Retrieved July 9, 2013.
- Fowler, Geoffrey A. (October 28, 2011). "Yelp Is Cleared in Lawsuit – WSJ.com". Wall Street Journal. Retrieved January 3, 2013. (subscription required)
- Zara, Christopher (July 12, 2013). "Yelp Extortion Rampant, Say Small-Business Owners As Class-Action Lawsuit Against Review 'Bully' Appealed". International Business Times. Retrieved August 4, 2013.
- Egelko, Bob (September 4, 2014). "Yelp can manipulate ratings, court rules". San Francisco Chronicle. Retrieved October 1, 2014.
- "Court Decides Yelp Can Change Ratings". Associated Press. September 4, 2014. Retrieved October 1, 2014.
- "Court Sides With San Francisco-Based Yelp In Lawsuit From Small Business Owners". CBS. September 4, 2014. Retrieved October 1, 2014.
- Chang, Andrea (August 21, 2013). "Yelp gets an earful from L.A. business owners". LA Times. Retrieved September 2, 2013.
- Luca, Michael; Zervas, Georgios (November 8, 2013), Fake It Till You Make It: Reputation, Competition, and Yelp Review Fraud, retrieved September 28, 2014
- Loten, Angus (April 2, 2014). "Yelp Reviews Brew a Fight Over Free Speech vs. Fairness". The Wall Street Journal. Retrieved July 4, 2014.
- Winkler, Rolfe (January 6, 2015). "Yelp Says FTC Won’t Act on Complaints About Its Reviews". The Wall Street Journal. Retrieved January 7, 2014.
- O'Brien, Sara (January 7, 2015). "Yelp: You can trust our reviews". CNN Money. Retrieved January 7, 2015.
- "Yelp's practices sound to some like extortion". LATimes.com. 2014-03-31. Retrieved 2015-02-11.
- Christopher Zara, IBTimes (March 11, 2015)
- Camilla Vasquez (June 19, 2014). The Discourse of Online Consumer Reviews. Bloomsbury Publishing. ISBN 978-1-4411-9684-2.
- "Yelp's Online Reviewing Mafia". BusinessWeek. June 2, 2011. Retrieved March 20, 2013.
- D'Onfro, Jillian (April 4, 2014). "Yelp Is In Court Deal With Free Speech Issues Yet Again". Business Insider.
- Sherman, Eric (April 4, 2014). "Yelp battles to keep local reviewers anonymous". ABC News. Retrieved July 4, 2014.
- Healy, Allie (November 4, 2014). "Facebook, Google, Twitter side with Yelp in Virginia Supreme Court case, report says". Syracuse. Retrieved November 13, 2014.
- Ryan, Laura (September 15, 2014). "Congress's Fight for Your Right to Yelp". National Journal. Retrieved September 16, 2014.
- Gross, Doug (September 12, 2014). "Yelp without fear, says new California law". CNN. Retrieved September 16, 2014.