Launched in February 2004, Facebook is a social networking service founded by Mark Zuckerberg with his college roommates and fellow students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes. Early investors included Microsoft and Hong Kong tycoon Li Ka- shing, through his namesake charitable foundation.

Paws for thought

Wow! Suddenly it seems like everyone is loving us on Facebook. Thanks, thanks, thank you very much, ahem.

So officially the last day, eh? I bet you just can't wait to pack up your stuff and head off for the summer holidays. We've been waiting for this all year.