Iran's government forbide its citizens to access social networking site, Facebook. This is done in order to anticipate the use of Facebook as a tool towards the election campaign in next June. This is done in order to anticipate the use of Facebook as campaign tools for president candidates.
Hossein Mousavi is the ex of P.M., have bigger chance to challenge Ahmadinejad to be a president. In Facebook, more than 5.000 people are supporting or maybe will vote him.
The ban will be released when general election of president is done.