Rabu, 04 Mei 2011
IT NEWS#22 TUMBLR
David Karp founded Tumblr in 2007 with Marco Arment as lead developer. 75,000 existing bloggers soon switched to the platform, and since that time, the service has garnered more than 3 million users. In 2009, Tumblr acquired the Tumblr iPhone app, initially known as Tumblerette, that was created by Jeff Rock and Garrett Ross.
According to a March 8, 2010 post by David Karp to the Tumblr staff blog, the site is now averaging 2,000,000 posts and 15,000 new users every day. As of 2009, Tumblr had an 85% retention rate, compared with 40% for Twitter.
On March 17, 2010, the Tumblr staff blog announced that Tumblr is now accessible on BlackBerry smart phones via an app created by Mobelux. On April 17, 2010, the application was made available on BlackBerry App World.
On December 5, 2010, Tumblr was inaccessible for about 47 hours due to errors during maintenance
As of May 1, 2011 Tumblr included more than 5 billion total posts and over 17.5 million total blogs.
RESOURCES: http://en.wikipedia.org/wiki/Tumblr
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