Twitter putting ads in your stream of tweets - Digitaltrends.com http://news.google.com/news/url?sa=t&fd=R&usg=AFQjCNETaNdwzRBNBV3YS8CPK3JvsKRJ2A&url=http://www.digitaltrends.com/social-media/twitter-putting-ads-in-your-stream-of-tweets/?news%3D123