It has already been erased:

Al Qaeda chief Osama bin Laden's top deputy Ayman al-Zawahiri had appeared on Facebook, but the social networking site later removed those pages.

Less than a fortnight after Osama bin Laden came on Facebook, The Sun revealed that al-Zawahiri, who has a 16.5 million-pound price on his head, also appeared on the site.

Facebook said: "These pages have been removed."

Two more pages linked to the Taliban were also removed.

Zawahiri's page had a photo of him with a semi-automatic rifle in the background and videos included a truck bombing in Afghanistan. It could be found through a Voice of Jihad site that included film clips calling for attacks on Britain and the US, the media report said.

Hey, I'm Al-Zawahiri, don't you want to be my FB friend?