Travel auction sites:
Bid on your vacation and see what kind of a deal you can get yourself (many vacation starting bids are $1!)

Hotwire.Com Pick the star rating and area and receive bids back on prices.
Ebay - On any given day, there are more than 16 million items listed on eBay across 27,000 categories.
Priceline.Com
Bid on airline tickets, hotels, cruises and packages at SkyAuction.com.