Pay Per Click Sites
Pay per click sites give you money when you click on adverts for them. They get paid for this and in turn, give you a share of the profits. They will pay you very little for each link that you click on, maybe £0.01 or $0.01, but you can still make money from them. This is because if you refer people, you will recieve a percentage of what they earn. If you have a method of reffering several people or more, you will dramatically increase your earnings. You canj either refer people in person, or if you have a website or a blog, you can post a hyperlink that will autom,atically refer people for you. Initially I was very sceptical of these sites, but the two shown below are the best. My advice would be to join them, try pay per click out for yourself, and if you don't like it, bin it.
Wordlinx - I found wordlinx to be one of the better pay per click sites. You get plenty of ads to click per day, so you get a steady income. The refferal rate is quite good as well.