Seb7 - 6:37 pm on Sep 24, 2010 (gmt 0)

[bbc.co.uk ]

One of Facebook's senior engineers Robert Johnson apologised to everyone who couldn't log on. In a statement on his blog he said: "The key flaw that caused this outage to be so severe was an unfortunate handling of an error condition. "An automated system [to fix the problem] ended up causing more damage than it fixed."