(cc) by totalAldo/flickr

Bragster, a social network based around 'challenges' and betting (think Double Dog Dare meets Jackass online) has launched an online series helmed by former Kate Modern producer Pete Gibbons. Centred around - you guessed it - challenges, the show Neg Versus sees a Channel 4 presenter taking on dares set by the community, and sounds like it could be fun.