Earlier this week The Guardian of London, noting an article on the opposition site Kalemeh, wrote in astonishment: even though Twitter and Facebook are blocked in Iran, the Supreme Leader had come out on both.
Only thing is: it's an old story.
We know this because we were one of Ayatollah Khamenei's first Facebook Friends. Here are the EA story and updates, run unedited, from August 2009:
UPDATE 16 August, 2035 GMT: Supreme Leader wants to click "Get New Nokia N97" ad on his page but worries he will put himself under surveillance.
Ayatollah Khamenei still has 39 friends.