Froogle:
Developed by Google, Inc. One of the most promising price comparison sites to date.
BizRate:
One of the largest price search sites. Over 30 million products listed.
Shopping.com:
Child of Dealtime and Epinions, now merged to provide you with three shopping search engines that feature your products separately, yet the same.
Yahoo Shopping:
Complete Yahoo Shopping data feed creation and maintenance solutions.
MSN Shopping:
Complete MSN Shopping data feed creation and maintenance solutions.
NexTag Shopping:
Complete NexTag data feed creation and maintenance solutions.
PriceGrabber Shopping:
Complete PriceGrabber data feed creation and maintenance solutions.
Auctionair
Fundraising auction for blindness, Charity Sight Savers International Organization. Bid for BMW Mini Cooper, Sony Vaio, World Cup tickets.
Wild, Wild eAuction
Rocky Mountain PBS's annual auction for programming.
ShopGoodwill.com
Goodwill stores offer online auction of a wide array of donated goods.