Watching the animation it is interesting that Iran flipped from facebook being to dominant in June 2009 to Cloob being dominant in June 2010. Wonder if this was

Watching the animation it is interesting that Iran flipped from facebook being to dominant in June 2009 to Cloob being dominant in June 2010. Wonder if this was due to government action or something else? EDIT: Read the actual story. It says due to state censorship.