Alternative Venues for buying & selling

This is a quick and dirty start on a list of alternative selling venues. Please email me additions, ideally with your comments about their scope and best features.

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Venue Categories Commentary
Specialty markets    
AbeBooks New and used books  
Alibris 2nd hand books, movies and music  
Architecturals.net Antique collecibles, architectural salvage, restoration, arts and crafts Presently offering free listings of Arts and Antiques
DavesGarden.com Marketplace Seeds, plant propagation and farm supplies  
DelCampe Collectible coins, stamps, ephemera, postcards. Has a substantial number of listings.
Etsy Handmade, One of a Kind items. Also craft supplies. Established, with exponential growth.
GoAntiques Antiques AuctionBytes
Main Street Mall Online A group of malls, each mall containing related stores. The idea is that grouping like stores makes more business for everyone.
StampWants.com Stamps Large inventory
CoinWants.com Coins Just starting?
General merchandise    
Bonanza stores ("booths") Ecommerce-Guide.com
CraigsList Free classified ads organized by locale.  
eCRATER General merchandise (stores) simple, easy, no fees
NeoLoch auctions and stores people like this site
AtomicMall Fixed price goods in stores, site wide searching Free listing. commission on sale
Other auction and mall sites See the list at Power Sellers Unite and their discussions of venues.  
And more others ShopIt.com, ebid.net, goZBAY.com, AhhGe.com