Trading and Auctions

D2 Now
Selling various virtual items for the US East Realm.
http://www.d2now.com/

Diablo 2 Item Shop
Sells a variety of Diablo items (US West only).
http://www.d2itemshop.com/

Diablo Items
Trading Diablo 2 related items.
http://www.diabloitems.net

D2SALE
Sells items for all realms.
http://www.d2sale.com

D2supplies
Provides items for east and west realms.
http://www.d2supplies.com/

D2VDM
Offers items on all realms as well as custom leveling.
http://www.d2vdm.com

EastItems.com Item Store
Sells items and characters on the USEast realm.
http://d2-east.pcgameitems.com

Magic-Find.Com
Provides items and services to USWest players.
http://magic-find.com

RPG Traders
Searchable auctions and trades for each realm, version, and mode.
http://traders.diabloii.net/