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This note is from BI Research, a new tech-industry intelligence service. The service is currently in beta and free. To learn more and sign up, please click here. The conventional wisdom about Twitter is that it may be a very nice product, but it doesn't have much of a business. And up until recently, that was true. And the fact that Twitter has been mostly dodging questions about its business metrics helps perpetuate the idea.
Twitter Is Quietly Building A Huge Business
Twitter Ad Revenues to Near $400 Million by 2013 - eMarketer
Twitter will earn $139.5 million in global ad revenues this year, up 210% from $45 million in 2010, according to a new forecast from eMarketer. By 2013, eMarketer estimates worldwide ad revenues at Twitter will reach nearly $400 million. “Since their debut in April 2010, Twitter’s Promoted Products have proven successful in the US,” said eMarketer principal analyst Debra Aho Williamson. “Marketers have shown solid engagement rates with Twitter advertising—in some cases better than those on Facebook—despite Twitter’s relatively smaller audience.” This forecast features a slightly lower 2011 ad revenue estimate than eMarketer’s previous estimate from January 2011—a result of Twitter’s slower-than-expected rollout of several advertising initiatives, including ad sales offices in markets outside the US and a platform enabling advertisers to buy ads on a self-serve basis. In January, eMarketer forecast that Twitter would have $150 million in ad revenue this year.Twitter’s U.S. Growth Is Stalling
Bidding War For Twitter Raises Valuation To Nearly $4 Billion. Kleiner Perkins Currently In Pole Position
Twitter to Sell 50% of All Tweets for $360k/Year Through Gnip
If Twitter Raises Another Round, It Won't Be Because It's Figured Out How To Make Money
DST May Make Huge Twitter Investment
Why Twitter's New CEO Will be Good for Everyone
Twitter Marketing Language
Twitter Has 145M Users, Mobile Use Up 62 Percent «
Mobile use of Twitter has climbed by more than 60 percent since April, when the company introduced its official iPhone client, Twitter CEO Ev Williams said in a status update posted to the company’s blog . The Twitter founder also said that the microblogging service has 145 million registered users, up almost 40 percent from the number it had four months ago. Williams said that 16 percent of all new users to Twitter start using the service via a mobile device now, compared with five percent before the first official mobile client arrived in April with the purchase of Tweetie , which was renamed Twitter for iPhone (the company now has official clients for BlackBerry and Android as well). Almost half of all users access the service via a mobile device regularly, Williams says, and the Twitter CEO argues that the decision to develop and/or buy official Twitter clients played a big part in this growth:Twitter and its ecosystem
Twitter Product Evolutions

