Other Pay Per Click Companies
There are other PPC companies that may be less risky and cheaper than Google AdWords.
www.dlwmmm.com/ms and www.dlwmmm.com/yahoo are two other examples of other pay per click companies that usually have less competition and lower clicks than Google AdWords.
They have less competition; however, also produce less traffic. (There is nothing stopping you running campaigns on multiple providers and getting the best from all of them.)

