This is another great site where you can earn money when you shop.
With Ebates you earn money with each person you refer to their site that signs up. Right now that amount is $5 and at times they run specials with a higher rate.
They often offer coupons for stores to give you an added discount on your purchase, and you also earn money back from them every time that you log-in with them and then go shopping online.
Ebates has over 900 stores online that they partner with to bring you the savings. If you're going shopping online at almost any store, they probably partner with that store. They don't offer ebay though if that is one of your primary shopping sources.
You earn money on Ebates when you shop through them or when you have a referral sign up under you. You don't earn money when your referrals shop through them. There referral bonus is a pretty nice incentive to use them and their % back is pretty good.
It's worth the effort to check them out. They are a reputable company known to pay.