twitter's revenue model is the promoted suite http://blog.twitter.com/2010/10/promoted-promotions.html http://blog.twitter.com/2010/10/promoted-promotions.html

twitter's revenue model is the promoted suite http://blog.twitter.com/2010/10/promoted-promotions.html http://blog.twitter.com/2010/10/promoted-promotions.html that is what they have been focusing on for the past few years and it is producing a lot of revenue now