I followed a link to this site from someone's email signature... and I gotta say, as a business model, I'm very impressed...
www.quibids.com
Basically, instead of simply bidding on items with regular money, and the site taking a cut. You Pay The Site for chances to win an item (or bids.) The brilliant part is... it costs you 60 cents per "chance" but each chance is only worth 1 cent towards winning the auction. And each time you bid on an item, it adds 10-20 seconds (depending on the item) so someone else can use more of their bids towards it.
Hell, I got sucked in to spending about $240 with the site and all I've "won" so far is a voucher for 25 bids that still cost me $2.20 after the service charge (what you've paid the site for bid chances doesn't apply to the item unless you choose a "buy-it-now" option, at which point only the bids you've USED to try and win that item are applied towards the sale price.)
I mean, a Samsung 46" 3D HDTV just "sold" for something ridiculous of like $35.00 ... but if you consider that that means there were 3500 bids that people have paid 60 cents a pop for... that's $2100.00 the site has "invoiced" in bids used.
Other examples are iPads going for anywhere from $30 to $140... MacBook Pro from $125-$200... etc. etc.
I'm too impressed with the site to be upset about it LOL