We all know these two are the top of the social networking sites but in no. Of users there are more user of Facebook than Twitter.Facebook itself entertaining everything is available on Facebook whenever Twitter is not for entertaining in actually.Facebook do lots of changes day ne day just because of their users they want everyone should have 1 Facebook id atleast they want to connect each and everyone in reality they are doing their bussiness very well and may say Facebook has gone far than all social networking sites.In general people use Twitter only for their thoughts what they are thinking they want to share their thoughts thats they twit their thoughts.