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No reliable sources, very biased, incorrect usage of terminology such as cisgender, liberal use of scare quotes
Not biased. I never stated any of this as fact. It's criticisms people have given to the website. By your logic, listing the criticisms given to, say, Jeremy Clarkson by quote is biased. I never stated any of it as opinion, if you would notice.
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'''Tumblr''', stylized in its logo as '''tumblr.''', is a [[microblogging]] platform and [[Social networking service|social networking]] website founded by [[David Karp]] and owned by [[Yahoo! Inc.]] The service allows users to post multimedia and other content to a short-form [[blog]]. Users can follow other users' blogs, as well as make their blogs private.<ref name=Boutin>{{cite news|author=Boutin, Paul|title=Tumblr Makes Blogging Blissfully Easy|url=http://gadgetwise.blogs.nytimes.com/2009/03/13/tumblr-makes-blogging-blissfully-easy/ |accessdate=March 26, 2009 | work=The New York Times | date=March 13, 2009}}</ref><ref>{{cite web|title=These 19 Social Networks Are Bigger Than Google+|url=http://www.businessinsider.com/these-19-social-networks-are-still-bigger-than-google-2011-7#10-tumblr-the-popular-social-blogging-platform-681-million-10|publisher=Business Insider|accessdate=January 27, 2014}}</ref> Much of the website's features are accessed from the "dashboard" interface, where the option to post content and posts of followed blogs appear.
'''Tumblr''', stylized in its logo as '''tumblr.''', is a [[microblogging]] platform and [[Social networking service|social networking]] website founded by [[David Karp]] and owned by [[Yahoo! Inc.]] The service allows users to post multimedia and other content to a short-form [[blog]]. Users can follow other users' blogs, as well as make their blogs private.<ref name=Boutin>{{cite news|author=Boutin, Paul|title=Tumblr Makes Blogging Blissfully Easy|url=http://gadgetwise.blogs.nytimes.com/2009/03/13/tumblr-makes-blogging-blissfully-easy/ |accessdate=March 26, 2009 | work=The New York Times | date=March 13, 2009}}</ref><ref>{{cite web|title=These 19 Social Networks Are Bigger Than Google+|url=http://www.businessinsider.com/these-19-social-networks-are-still-bigger-than-google-2011-7#10-tumblr-the-popular-social-blogging-platform-681-million-10|publisher=Business Insider|accessdate=January 27, 2014}}</ref> Much of the website's features are accessed from the "dashboard" interface, where the option to post content and posts of followed blogs appear.


As of March 3, 2014, Tumblr hosts over 174.2 million blogs.<ref name="about"/> The company's headquarters is in [[New York City]].
As of March 3, 2014, Tumblr hosts over 174.2 million blogs.<ref name="about"/> The company's headquarters is in [[New York City]].


[[Yahoo!]] announced its intention to acquire Tumblr on May 20, 2013, for approximately $1.1 billion.<ref>{{cite web |url=http://www.usatoday.com/story/money/2013/05/20/yahoo-tumblr-deal-announcement/2326531/ |title=Yahoo pledges 'not to screw up' Tumblr deal |last=Yu|first=Roger |date=May 20, 2013 |work= |publisher=USA Today |accessdate=May 20, 2013}}</ref><ref>{{cite web|url=http://abclocal.go.com/wpvi/story?section=news/national_world&id=9105444|title=Yahoo takes big leap with $1.1B deal for Tumblr|accessdate=January 27, 2014}}</ref><ref>{{cite web|url=http://finance.yahoo.com/blogs/daily-ticker/yahoo-ceo-marissa-mayer-buys-tumblr-her-boldest-150522231.html|title=Yahoo CEO Marissa Mayer Buys Tumblr–Her Boldest Move Yet|accessdate=May 21, 2013}}</ref><ref>{{cite web|url=http://www.ign.com/articles/2013/05/20/yahoo-acquires-tumblr-for-11-billion|title=Yahoo! Acquires Tumblr for $1.1 Billion|accessdate=May 21, 2013}}</ref> The deal closed on June 20, 2013.<ref>{{cite web|title=Tumblr. + Yahoo! -- It's Officially Official. {{!}} Yahoo!|url=http://yahoo.tumblr.com/post/53441093826/tumblr-yahoo-its-officially-official|publisher=Yahoo!|accessdate=June 20, 2013}}</ref>
[[Yahoo!]] announced its intention to acquire Tumblr on May 20, 2013, for approximately $1.1 billion.<ref>{{cite web |url=http://www.usatoday.com/story/money/2013/05/20/yahoo-tumblr-deal-announcement/2326531/ |title=Yahoo pledges 'not to screw up' Tumblr deal |last=Yu|first=Roger |date=May 20, 2013 |work= |publisher=USA Today |accessdate=May 20, 2013}}</ref><ref>{{cite web|url=http://abclocal.go.com/wpvi/story?section=news/national_world&id=9105444|title=Yahoo takes big leap with $1.1B deal for Tumblr|accessdate=January 27, 2014}}</ref><ref>{{cite web|url=http://finance.yahoo.com/blogs/daily-ticker/yahoo-ceo-marissa-mayer-buys-tumblr-her-boldest-150522231.html|title=Yahoo CEO Marissa Mayer Buys Tumblr–Her Boldest Move Yet|accessdate=May 21, 2013}}</ref><ref>{{cite web|url=http://www.ign.com/articles/2013/05/20/yahoo-acquires-tumblr-for-11-billion|title=Yahoo! Acquires Tumblr for $1.1 Billion|accessdate=May 21, 2013}}</ref> The deal closed on June 20, 2013.<ref>{{cite web|title=Tumblr. + Yahoo! -- It's Officially Official. {{!}} Yahoo!|url=http://yahoo.tumblr.com/post/53441093826/tumblr-yahoo-its-officially-official|publisher=Yahoo!|accessdate=June 20, 2013}}</ref>
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=== Copyright violation ===
=== Copyright violation ===
Tumblr has received criticism for copyright violations by participating bloggers;<ref name=Supervision /> however, Tumblr does accept Digital Millennium Copyright Act (DMCA) [[OCILLA|take-down notices]].<ref name="tumblr dmca form">{{cite web | url=https://www.tumblr.com/dmca | title=DMCA Copyright Notifications | publisher=Tumblr | accessdate=May 20, 2013}}</ref> Tumblr's visual appeal has made it ideal for photoblogs that often include copyrighted works from others that are re-published without payment.<ref name="Why Tumblr must kill">{{cite news|last=Edwards|first=Jim|title=Why Tumblr Must Kill What Made it Big: Porn and Copyright Violations|url=http://www.cbsnews.com/news/why-tumblr-must-kill-what-made-it-big-porn-and-copyright-violations|accessdate=March 28, 2013|newspaper=CBSNews.com|date=September 12, 2011}}</ref> Tumblr users can post unoriginal content by "Reblogging", a feature on Tumblr that allows users to re-post content taken from another blog onto their own blog.<ref name=Supervision>{{cite web|last=Edwards|first=Jim|title=Why Tumblr Needs Adult Supervision Right Now|url=http://www.businessinsider.com/tumblr-fashion-directors-exit-could-mean-entry-of-adult-supervision-2011-11|publisher=Business Insider}}</ref><ref name=Criticism>{{cite web|title=Tumblr: A New Way of Blogging|url=https://sites.google.com/site/xwarneritessay/5|accessdate=March 21, 2013}}</ref>
Tumblr has received criticism for copyright violations by participating bloggers;<ref name=Supervision /> however, Tumblr does accept Digital Millennium Copyright Act (DMCA) [[OCILLA|take-down notices]].<ref name="tumblr dmca form">{{cite web | url=https://www.tumblr.com/dmca | title=DMCA Copyright Notifications | publisher=Tumblr | accessdate=May 20, 2013}}</ref> Tumblr's visual appeal has made it ideal for photoblogs that often include copyrighted works from others that are re-published without payment.<ref name="Why Tumblr must kill">{{cite news|last=Edwards|first=Jim|title=Why Tumblr Must Kill What Made it Big: Porn and Copyright Violations|url=http://www.cbsnews.com/news/why-tumblr-must-kill-what-made-it-big-porn-and-copyright-violations|accessdate=March 28, 2013|newspaper=CBSNews.com|date=September 12, 2011}}</ref> Tumblr users can post unoriginal content by "Reblogging", a feature on Tumblr that allows users to re-post content taken from another blog onto their own blog.<ref name=Supervision>{{cite web|last=Edwards|first=Jim|title=Why Tumblr Needs Adult Supervision Right Now|url=http://www.businessinsider.com/tumblr-fashion-directors-exit-could-mean-entry-of-adult-supervision-2011-11|publisher=Business Insider}}</ref><ref name=Criticism>{{cite web|title=Tumblr: A New Way of Blogging|url=https://sites.google.com/site/xwarneritessay/5|accessdate=March 21, 2013}}</ref>

===User base ===

The site's user base is criticized by many people for it's apparent extreme "social justice" community, which has been heavily criticized. Among the criticisms are the treatment of [[CISgender]] users, the extreme feminist movements, and it's "overly politically correct views on rape and homophobia". The sites views on self harm as a glorified action are also criticized, along with the site's over-abundance of sexual homosexual content and the heavy use of "postmodern neologisms" such as demisexual, which has been described as "over politically correct...incomprehensible jargon". <ref>{{cite web|last=Jeff|first=Can|title=Opinions on Tumblr|url=https://www.youtube.com/watch?v=2m-e4PgiVfM|work=Viral Videos|accessdate=3 April 2014}}</ref> <ref>{{cite web|last=Jeff|first=Can|title=Rational Wiki: Tumblr|url=http://rationalwiki.org/wiki/Tumblr#Tumblr|work=Information Sharing site.|accessdate=3 April 2014}}</ref>


=== Security ===
=== Security ===

Revision as of 20:02, 3 April 2014

Tumblr
The logo for Tumblr, Inc.
The Tumblr homepage when a user is not signed in, as of May 2013. A different background image is displayed each time the page is loaded.
Type of businessSubsidiary
FoundedFebruary 2007[1]
HeadquartersNew York City, United States[2]
OwnerYahoo! Inc.
Founder(s)David Karp
IndustryMicroblogging, social networking service
Employees243 (as of April 2014)[1]
URLtumblr.com

Tumblr, stylized in its logo as tumblr., is a microblogging platform and social networking website founded by David Karp and owned by Yahoo! Inc. The service allows users to post multimedia and other content to a short-form blog. Users can follow other users' blogs, as well as make their blogs private.[4][5] Much of the website's features are accessed from the "dashboard" interface, where the option to post content and posts of followed blogs appear.

As of March 3, 2014, Tumblr hosts over 174.2 million blogs.[2] The company's headquarters is in New York City.

Yahoo! announced its intention to acquire Tumblr on May 20, 2013, for approximately $1.1 billion.[6][7][8][9] The deal closed on June 20, 2013.[10]

History

Development of Tumblr began in 2006 during a two-week gap between contracts at David Karp's software consulting company, Davidville (housed at Karp's former internship with producer/incubator Fred Seibert's Frederator Studios which was located a block from Tumblr's current headquarters).[11][12] Karp had been interested in tumblelogs (short-form blogs) for some time and was waiting for one of the established blogging platforms to introduce their own tumblelogging platform. As no one had done so after a year of waiting, Karp and developer Marco Arment began working on their own tumblelogging platform.[13][14] Tumblr was launched in February 2007[15][16] and within two weeks, the service had gained 75,000 users.[17] Arment left the company in September 2010 to focus on Instapaper.[18]

In early June 2012, Tumblr featured its first major brand advertising campaign in conjunction with Adidas. Adidas launched an official soccer Tumblr blog and bought placements on the user dashboard. This launch was only two months after Tumblr announced it would be moving towards paid advertising on its site.[19]

On May 20, 2013, it was announced that Yahoo! and Tumblr had reached an agreement for Yahoo! to acquire Tumblr for $1.1 billion in cash.[20][21] Many of Tumblr's users were unhappy with the news, causing some to start a petition, achieving nearly 170,000 signatures.[22] David Karp will remain CEO and the deal was finalized on June 20, 2013.[23][24]

Features

Blog management

  • Dashboard - The dashboard is the primary tool for the typical Tumblr user. It is a live feed of recent posts from blogs that they follow.[25] Through the dashboard, users are able to comment, reblog, and like posts from other blogs that appear on their dashboard. The dashboard allows the user to upload text posts, images, video, quotes, or links to their blog with a click of a button displayed at the top of the dashboard. Users are also able to connect their blogs to their Twitter and Facebook accounts, so whenever they make a post, it will also be sent as a tweet and a status update.[26]
  • Queue - Users are able to set up a schedule to delay posts that they make. They can spread their posts over several hours or even days.[26]
  • Tags - For each post a user creates, they are able to help their audience find posts about certain topics by adding tags. If someone were to upload a picture to their blog and wanted their viewers to find pictures, they would add the tag #picture, and their viewers could use that word to search up posts with the tag #picture.
  • HTML editing - Tumblr allows users to edit their blog's theme HTML coding to control the appearance of their blog. Users are also able to use a custom domain name for their blog.

Mobile

With Tumblr’s 2009 acquisition of Tumblerette, an Apple App Store application created by Jeff Rock and Garrett Ross, the service launched its official iPhone app.[27][28] The site became available to BlackBerry smartphones on April 17, 2010 via a Mobelux application in BlackBerry World. In June 2012, Tumblr released a new version of its iOS app, Tumblr 3.0 allowing support for Spotify, hi-res images and offline access.[29] An app for Android is also available.[30] A Windows Phone app was released on April 23, 2013.[31] An app for Google Glass was released on May 16, 2013.[32]

Editorial content

In May 2012, Tumblr launched Storyboard, a blog managed by an in-house editorial team which features stories and videos about noteworthy blogs and users on Tumblr.[33] In April 2013, Storyboard was shut down.[34]

Usage

  • As of March 3, 2014, Tumblr hosts over 174.2 million blogs and more than 78.4 billion posts in total.[2]
  • In April 2013 the website received more than 13 billion global page views.[35]
  • As of March 3, 2014, over 110.2 million posts were created on the site each day.[1]

An analysis by AddThis of shares through their service in 2011 noted that Tumblr sharing had increased by 1299.5%.[36]

The service is most popular with the teen and college-aged user segments with half of Tumblr's visitor base being under the age of 25.[37]

Adult content

Tumblr is noted by technology journalists as having a sizable amount of pornographic content, though the exact amount is known only to the company.[38] The New York Times notes "pornography represents a fraction of content on the site, but not a trivial amount for a site with 100 million blogs."[39] Karp revealed in June 2012 that between 2 and 4 percent of Tumblr's traffic is porn-related.[40] Tumblr's Community Guidelines permits adult-oriented content but requires that blogs that contain occasional or substantial mature content to be flagged as such. Sexually-explicit videos are not allowed to be uploaded to the website, but videos hosted elsewhere may be embedded.[41] Some porn bloggers earn money by referring traffic to adult businesses through referrals and widgets.[42]

As of July 20, 2013, policy updates enacted by Tumblr mean that pages classified as "NSFW" will not feature in tag pages for users who are not logged in or who have the "Safe Mode" activated. For users who are logged in to Tumblr, but do not have "Safe Mode" turned on, NSFW blogs should show up on search and tag pages; NSFW pages are indexed by search engines.[43] In a public statement, the company conveyed the following:

Tumblr's longstanding policy regarding NSFW content has not changed and emphasizes the importance of free expression. As addressed in these policies, we are constantly taking measures to ensure our users can avoid this content unless they'd like to see it. Anyone can opt-in by disabling Safe Mode in their Dashboard Settings.[44]

Self-harm and suicide

In February 2012, Tumblr's staff blog announced that the content policy would change to ban blogs that promote or advocate suicide, self-harm and eating disorders (pro-ana).[45]

The suicide of a British teenager, Tallulah Wilson, raised the issue of suicide and self-harm promotion on Tumblr as Wilson was reported to have maintained a self-harm blog on the site. A user on the site is reported to have sent Wilson an image of a noose accompanied by the message: "here is your new necklace, try it on". In response to the Wilson case, Maria Miller, the UK's minister for culture, media and sport, said that social media sites like Tumblr need to remove "toxic" self-harm content.[46][47]

Corporate affairs

Tumblr's headquarters is on East 21st Street in New York City. The offices are on the 10th floor.

Tumblr's headquarters is at 35 East 21st Street in the Flatiron District in New York City's Silicon Alley.[2][48][49] The company also maintains a support office in Richmond, Virginia.[50] As of February 2014, Tumblr has 231 employees.[1] The company's logo is set in Bookman Old Style with some modifications.[51]

Funding

To date, Tumblr has received about $125 million of funding from investors.[52] The company has raised funding from Union Square Ventures, Spark Capital, Martín Varsavsky, John Borthwick (Betaworks), Krum Capital, Fred Seibert, and Sequoia Capital (among other investors).[53][54]

In its first round of funding in October 2007, Tumblr raised $750,000 from Spark Capital and Union Square Ventures.[55] In December 2008, the company raised $4.5 million in Series B funding[56] and a further $5 million in April 2010.[57] In December 2010, Tumblr raised $30 million in Series D funding.[58] The company had a $800 million valuation in August 2011.[59] In September 2011, the company raised $85 million in a round of funding led by Greylock Partners and Insight Venture Partners.[60]

Revenue sources

In an interview with Nicole Lapin of Bloomberg West on September 7, 2012, David Karp said the site was monetized by advertising. Their first advertising launch started in May 2012 after 16 experimental campaigns.[61] Tumblr made $13 million in revenue in 2012 and hopes to make $100 million in 2013. Tumblr reportedly spent $25 million to fund operations in 2012.[52]

In 2013, Tumblr began allowing companies to pay to promote their own posts to a larger audience. Tumblr Head of Sales, Lee Brown, has quoted the average ad purchase on Tumblr to be nearly six figures.[62] Tumblr also generates revenue by selling themes to users to change the appearance of their blog.[63]

Criticism

Tumblr has received criticism for copyright violations by participating bloggers;[64] however, Tumblr does accept Digital Millennium Copyright Act (DMCA) take-down notices.[65] Tumblr's visual appeal has made it ideal for photoblogs that often include copyrighted works from others that are re-published without payment.[42] Tumblr users can post unoriginal content by "Reblogging", a feature on Tumblr that allows users to re-post content taken from another blog onto their own blog.[64][66]

User base

The site's user base is criticized by many people for it's apparent extreme "social justice" community, which has been heavily criticized. Among the criticisms are the treatment of CISgender users, the extreme feminist movements, and it's "overly politically correct views on rape and homophobia". The sites views on self harm as a glorified action are also criticized, along with the site's over-abundance of sexual homosexual content and the heavy use of "postmodern neologisms" such as demisexual, which has been described as "over politically correct...incomprehensible jargon". [67] [68]

Security

Tumblr has been forced to manage spam and security problems. For example, a chain letter scam in May 2011 affected 130,000 users.[69]

On December 3, 2012, Tumblr was attacked by a cross-site scripting worm deployed by the Internet troll group Gay Nigger Association of America. The message encouraged users to harm themselves and criticized blogging in general.[70]

Recognition

See also

References

  1. ^ a b c d "Press Information". Tumblr. Retrieved March 3, 2014.
  2. ^ a b c d Tumblr "About Us". Retrieved March 3, 2014. {{cite web}}: Check |url= value (help)
  3. ^ "Tumblr.com Site Info". Alexa Internet. Retrieved April 1, 2014.
  4. ^ Boutin, Paul (March 13, 2009). "Tumblr Makes Blogging Blissfully Easy". The New York Times. Retrieved March 26, 2009.
  5. ^ "These 19 Social Networks Are Bigger Than Google+". Business Insider. Retrieved January 27, 2014.
  6. ^ Yu, Roger (May 20, 2013). "Yahoo pledges 'not to screw up' Tumblr deal". USA Today. Retrieved May 20, 2013.
  7. ^ "Yahoo takes big leap with $1.1B deal for Tumblr". Retrieved January 27, 2014.
  8. ^ "Yahoo CEO Marissa Mayer Buys Tumblr–Her Boldest Move Yet". Retrieved May 21, 2013.
  9. ^ "Yahoo! Acquires Tumblr for $1.1 Billion". Retrieved May 21, 2013.
  10. ^ "Tumblr. + Yahoo! -- It's Officially Official. | Yahoo!". Yahoo!. Retrieved June 20, 2013.
  11. ^ Karp, David; Alexandria, Julie (May 27, 2008). David Karp and Tumblr (Video). Wallstrip. Event occurs at 1:30. Retrieved February 24, 2013. Sometime in 2006, we had a couple of weeks between contracts and said 'Let's see what we can do, let's see if we can built this thing', and we threw together the first working version of Tumblr. {{cite AV media}}: Italic or bold markup not allowed in: |publisher= (help)
  12. ^ ""Tumblr: David Karp's $800 Million Art Project" Forbes, January 2, 2013". Forbes.com. April 18, 2012. Retrieved April 17, 2013.
  13. ^ Davis, Sammy (August 27, 2008). "So What Do You Do, David Karp, Founder of Tumblr?". Mediabistro.com. Archived from the original on January 2, 2013. Retrieved January 2, 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  14. ^ Shafrir, Doree (January 15, 2008). "Would You Take a Tumblr With This Man?". The New York Observer. Archived from the original on January 2, 2013. Retrieved January 2, 2013. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  15. ^ Karp, David (December 12, 2011). David Karp: When It All Came Together (Video). Fast Company. Event occurs at 1:03. Retrieved February 24, 2013. Over the next few months, we kind of pieced together what became the first version of Tumblr which launched in February 2007.
  16. ^ Karp, David (February 19, 2007). "Tumblr – something we've always wanted". Davidville. Archived from the original on February 24, 2013. Retrieved February 24, 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  17. ^ Ingram, Matthew (August 25, 2010). "Google VC, Tumblr CEO Among the Top Innovators Under 35". GigaOM. Giga Omni Media. Archived from the original on January 2, 2013. Retrieved January 2, 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
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  19. ^ Delo, Cotton (June 8, 2012). "Tumblr Unveils First Major Brand Campaign for Adidas". Advertising Age. Crain Communications. Archived from the original on July 18, 2012. Retrieved July 18, 2012. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  20. ^ Yahoo to buy Tumblr for $1.1 billion: Report, CNN.com. Retrieved May 21, 2013.
  21. ^ "Yahoo's Board Approves $1.1 Billion Purchase of Tumblr". Business Insider. Retrieved May 19, 2013.
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  32. ^ Tibken, Shara (May 16, 2013). "Google: Check out our new Glassware like Tumblr". CNET. CBS Interactive. Archived from the original on May 17, 2013. Retrieved May 17, 2013. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  33. ^ Weber, Harrison (May 7, 2012). "Tumblr's editorial hires lead to "Storyboard," a hub to feature creative users". The Next Web. Archived from the original on April 13, 2013. Retrieved April 13, 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  34. ^ Faircloth, Kelly (April 9, 2013). "Tumblr Kills Storyboard; Editorial Employees Will Be 'Moving On'". Betabeat. Archived from the original on April 13, 2013. Retrieved April 13, 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  35. ^ MacMillan, Douglas (May 19, 2013). "Yahoo's board approves $1.1 billion purchase of Tumblr, WSJ says". The Washington Post. Retrieved May 20, 2013.
  36. ^ Dumenco, Simon (December 13, 2011). "AddThis: Facebook Makes Up 52% of Sharing on the Web". Advertising Age. Archived from the original on December 15, 2011. Retrieved December 15, 2011. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  37. ^ Lipsman, Andrew (August 30, 2011). "Tumblr Defies its Name as User Growth Accelerates". comScore. Archived from the original on January 6, 2012. Retrieved January 6, 2012. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  38. ^ Kafka, Peter (May 18, 2013). "Why Yahoo Doesn't Think Tumblr Has a Porn Problem". All Things Digital. Archived from the original on June 16, 2013. Retrieved June 16, 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  39. ^ de la Merced, Michael J.; Bilton, Nick; Perlroth, Nicole (May 19, 2013). "Yahoo to Buy Tumblr for $1.1 Billion". The New York Times. The New York Times Company. p. A1. Archived from the original on June 16, 2013. Retrieved June 16, 2013. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  40. ^ Farber, Dan (June 15, 2012). "Tumblr for iOS launching next week". CNET. CBS Interactive. Archived from the original on June 16, 2013. Retrieved June 16, 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  41. ^ Brustein, Joshua (May 17, 2013). "If Yahoo Buys Tumblr, What Will It Do With All That Porn?". Bloomberg Businessweek. Bloomberg L.P. Archived from the original on June 16, 2013. Retrieved June 16, 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  42. ^ a b Edwards, Jim (September 12, 2011). "Why Tumblr Must Kill What Made it Big: Porn and Copyright Violations". CBSNews.com. Retrieved March 28, 2013.
  43. ^ "Tumblr Staff". Tumblr. July 19, 2013. Retrieved January 26, 2014.
  44. ^ Christina Warren (July 20, 2013). "Tumblr Starts Hiding Porn From Search and Tag Pages". Mashable. Mashable. Retrieved July 21, 2013.
  45. ^ "A New Policy Against Self-Harm Blogs". Tumblr Staff Blog. February 23, 2012. Retrieved January 27, 2014.
  46. ^ "Maria Miller: Time for a crackdown on social media 'poison'". The Telegraph. January 27, 2014. Retrieved January 27, 2014.
  47. ^ Hern, Alex (January 27, 2014). "Social networks to face government grilling over suicide content". The Guardian. Retrieved January 27, 2014.
  48. ^ Goodman, Daniel (January 12, 2012). "Tumblr Office Tour". Business Insider. Retrieved June 10, 2013.
  49. ^ McGeehan, Patrick (May 9, 2012). "Technology Industry Seen Growing Fastest in New York". New York Times.
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  51. ^ Coles, Stephen (December 3, 2013). "Tumblr Logo, 2007–2013". Fonts in Use. Archived from the original on February 8, 2014. Retrieved February 8, 2014. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
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