uBid On-line auction house. http://www.ubid.com

Yahoo Auctions Offers various categories to buy and sell. http://auctions.yahoo.com/

QXL Online auction with offers for European consumers, including arts, collectibles, cars, computing, consumer electronics and entertainment. http://www.qxl.com/

Amazon.com Auctions Organized by category with search available. Also lists some items for Sotheby's. http://s1.amazon.com/exec/varzea/subst/home/home.html

The Free Auction Offering a wide variety of categories. Includes live chat and message board. http://www.thefreeauction.com

Internet Auction Offers a items for auction divided into categories. http://www.internetauction.net/

SellYourItem.com Member-driven site with a wide variety of categories. http://www.sellyouritem.com/

Steal it Back Police auction selling seized, repossessed, and confiscated items on online auction. http://www.stealitback.com

YNotBid General auctions online. http://www.ynotbid.com

USA Auctions Online auctions buy or sell trading cards. http://www.usauctions.com/

InterAuct Singapore auction site. http://www.interauct.com.sg/

Trade Me Free online auctions and classifieds for New Zealanders. http://www.trademe.co.nz/

Tradehall Trade a variety of items. http://www.tradehall.com/

SalvageSale, Inc. Claims recovery and commercial salvage. http://www.salvagesale.com

Auction4it.com Includes electronics, jewelry and household items. http://www.auction4it.com

Auction-Warehouse Name-brand computers, peripherals, games, and electronics. http://www.auction-warehouse.com

CQout Wide variety of products including arts, books, fashion, housewears and jewelry. http://www.cqout.com

eBay International person to person auction site, with products sorted into categories. http://www.ebay.com/

Trodo Allows users to barter goods with each other in exchange for credits, rather than money. http://www.trodo.com/

GSAAuctions.gov Offers the general public the opportunity to bid electronically on a wide array of U.S. federal assets. Surplus, seized and forfeited assets are available for bidding. https://www.gsaauctions.gov/