Let's be positive. Forget the credit crunch and the age of austerity - they're going to help make you some money. Don't worry if you're no Alan Sugar; thanks to the internet and your PC, all you need is a good idea.
The internet is a great place to make cash - just remember the old adage: if it sounds too good to be true, it probably is.
Peer-to-peer lending. Services like Zopa make it possible to borrow and lend without the bankers taking a cut
Microworking - make money for tiny tasks
Computers are becoming ever more powerful, but some jobs still need a human touch. Work at your own pace with Human Intelligence Tasks
Advertise on your website.