- 2 May 08, 12:25 GMT
Whatever the problems over privacy, Facebook is still doing remarkably well in the UK. The latest figures from Nielsen show it's got 9.9 million UK members, almost twice as many as MySpace, so that dip at the beginning of the year seems to have been a blip.
But could ridicule do for Facebook? A BBC Three sketch about the true nature of friendship on the social network is funny, accurate - and becoming a big viral hit on YouTube. (Contains strong language.)
And it comes just as many people are beginning to ask whether they really want to be in a place where they can be found and poked by virtual strangers - and have embarrassing moments from their past plastered all over the internet.
Facebook becoming mainstream enough to feature in a TV sketch show is obviously a sign of success - but remember the impact that Spitting Image had 20 years ago on the careers of some of the politicians it lampooned? If the idea that Facebook membership is for losers takes hold, then the crowds may melt away as quickly as they gathered.
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