I suppose this could be classed as gambling, but with clues.
Basically pick a prize and make a bid on it.
The lowest UNIQUE amount wins that item.
One free bid there, but if you pay to make several bids you get clues as to where the winning amount is.
I had a go at winning a Mercedes CLK but was about £20 out. Can be a bit addictive, especially when you have a winning bid and then you get an email telling you that your bid has been matched by someone else ( therefore no longer unique )
It's on a lottery site but this link should take you straight to page:-
http://www.e-lotbidder.com/redir.asp.../first_bid.asp
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