I use eBates, but you can use Quickrewards or Sunshine Rewards too. I'm sure there are others too. I just happen to prefer eBates. You just sign up for one of the rewards sites then click their Ebay link. In a few days your credit/reward should show up in your balance. There are also tons of stores to shop from on these sites, like
Walmart, Dell, etc., so if you do any online shopping for anything, make sure you check your reward site first to see if they have the store.
Independent from those reward sites is Ebay's Bucks:
http://pages.ebay.com/rewards/faq.html (There is a link towards the middle of the page).
I think you have to sign in first, to see the logo show up. It will show at the top near your user id / name, and also under the price of an item...it will say something like "You will earn $1.25 Bucks on this purchase."
I have not tried it yet to see if I can get both, but I was told it would work. So the idea is you can eventually use your "free" Ebay Bucks for purchasing something, and still get rewards back on a site like eBates or Sunshine Rewards, as if you had spent cash money.
Can you post a link to the thread about quickrewards? I can't seem to find it. We shop alot on Ebay so I would love to earn some stuff from it! We do love the Ebay bucks though.
I think it is the $75 worth...thread in this forum:
http://www.disboards.com/forumdisplay.php?f=35
If not, there are alot of threads about rewards sites there.