At the high end of the top we have Bebo on the fourth place with 30 minutes of downtime. Fighting for the second step of the ladder are Facebook and MySpace, each with only 10 minutes.
Atop everyone ranked Yahoo! 360, with a record impossible to beat: 0 minutes.
The study was conducted by Internet monitoring firm Pingdom from 19 October to 19 November and it included 12 of the largest social network sites in the world: MySpace, Facebook, LiveJournal, Orkut, Friendster, Windows Live Spaces, Xanga, Bebo, Last.fm, Reunion.com, Classmates.com and Yahoo! 360.
According to Pingdom, a site would be checked as being down if it didn’t respond within 30 seconds.