I have mentioned BigCrumbs in previous articles. The idea is simple, you join their site(for free), search for a retailer or a deal and BigCrumbs redirects you to that website. If you make a purchase BigCrumbs splits the commission with you. I joined about 8 months ago and have earned just over 25 bucks. I am guessing I will earn about $30-$60 a year from this site going forward.
The best part is that it is effortless. I shop for the things I am interested in and every few months I get an e-mail like the one I got yesterday. Oh look another $2.35 in my paypal account, nice. If you do a lot of your shopping on line you should consider joining BigCrumbs.