Twitter Goes After a Facebook Cash Cow - NYTimes.com - NYTimes.com

Still in search of a robust business model

"Mr. Weil said advertisers could now use Twitter’s targeting abilities to aim their app install ads to particular subsets of mobile Twitter users and also serve the same ads to users of other apps that are served by MoPub. In theory, the advertisers now get access to around a billion potential viewers of their ads — roughly the same size audience that Facebook can offer. (Facebook announced in January that it was testing ways to sell app install ads that would be displayed in other apps besides Facebook.)

Whether Twitter can replicate Facebook’s success with app install ads remains to be seen. But that’s probably one area where Twitter wouldn’t mind being called a copycat."

Twitter Goes After a Facebook Cash Cow - NYTimes.com - NYTimes.com