Twitter announced it about 7 weeks ago, here is my post on background and links to their announcements http://buzzsumo.com/blog/twitter-share-counts-in-your-bro

Twitter announced it about 7 weeks ago, here is my post on background and links to their announcements http://buzzsumo.com/blog/twitter-share-counts-in-your-browser-new-buzzsumo-chrome-extension/ http://buzzsumo.com/blog/twitter-share-counts-in-your-browse...