I don't know the link, but basically the company that is running this is an internet startup that is a cross between a bank and eBay (though some people would argue eBay is a lot like a band already, but that's a story for another thread).
To put it in simple terms, you find some stuff you want to sell. You go to the site and say "Hey, I think my stuff is worth $250!" They say, "Ok, here's a $250 interest free loan. Put your stuff up and sell it. If you haven't got the $250 back to us in two weeks, the clock starts ticking on interest."
So it's eBay if eBay gave you the final sale price upfront. At least that's how I understood it...