I love Amazon.com. They offer excellent promotions. I always compare prices, so I don't just buy from Amazon because they offer free shipping. I have liked the fact that they offer excellent products and the fast free shipping is a bonus. I also like the fact I can read reviews of products. I repeat, I always compare prices.
No fee for buyers. Fees are for sellers. I'm an occasional seller, so I wait for Ebay's promotion of "free" auctions, and only then do I list for no fee. I still pay Paypal fees, but that's okay. This auction site is better than Quibids.
It's an online auciton that you have to pay to bid. It's costs 60 cents no matter what, and it's rare to win any auction for one 60 cent bid. You pay for your bid, plus the cost of the actual auction and shipping/handling. So Ebay is better, since a buyer doesn't pay to bid on their auctions, and there are no fees involved for Ebay bidders.