Still a pretty picture, this time on the history of the estimated value of Twitter, 2007-2010.
Who invested in Twitter (business angels including Marc Andreessen, Naval Ravikant, Dick Costolo, Kevin Rose, Tim Ferris, Ron Conway and Chris Sacca for a total outlay of 162 million in 2010), the rounds, its current value (about 1.4 billion U.S. dollars), the economic model and a comparison of recovery with Google, Yahoo, Baidu and Sohu.
