Get paid to sit on t' net!
Check this site out, it's a survey group called YouGov (heard of em?), they send you surveys and each one you complete they pay you either 50p or £1. Once you get to £50 they send you a cheque through the post. This isn't a scam, and whose results have been referenced in national newspapers on all sorts of topics, politics, Iraq, sport you name it.
The surveys only take a couple of minutes each. Link:-
Could be useful if when you need a few bob...