If you are not me, then you probably wont find this page of much use, so, er, oh dear...
I do however, like all self respecting people, have Facebook, which I use frequently.
A lot of my internet timewasting is spent on various forums of different endeavour, including Pixalo Photography Community, an extremely friendly photography forum, and CycleChat, another friendly place, but instead dedicated to cycling of all kinds. Slightly more recently I've also been quite heavily invovled in the London Fixed Gear and Single Speed forum, not so much for the faint hearted...get over it.