Blue Global Media happens to be one of the top affiliate networks out there. If you have never heard of an affiliate program, basically you get paid when someone purchased something through your link. You have a referral link and can put it on your blog, etc. I have made a little bit of money through these type of programs and they are pretty good. Getting the people interested is what is the hard thing. But a Payday Affiliate program like this is pretty easy.
So if you are looking for a good program, check out Blue Global Media. Easy to sign up and they explain everything right there on the website.