Skolink:
This page in particular I found quite enlightening (and slightly disturbing) when pointed to it by a workmate earlier this year. It might be basic ecomonics, but I only took economics to 3rd form, and it wasn't taught. It never really occurred to me that I don't have 'money' in the bank, just a contract to that value. I'm not going to be buying gold any time soon though, at least until the mortgage is paid off!
Most people don't think about carrying around government issued IOUs either. Cash (legal tender) in your pocket is not a lot different to your money in the bank.