USEDEQUIP

Big Used Guitar List - This large searchable database of musical equipment classifieds is constantly updating its ads. 

Music Trader - The classified ad index lists a variety of used and vintage guitars, along with contact information.

Guitar Auction - Free to post or bid, consider their inventory of used and vintage instruments by such classic manufacturers as Gibson, Les Paul, Fender, Taylor, Strat and more.

Guitar Bar - Buy, sell or trade your old guitar or musical instrument accessories. Located in Hoboken, N.J., they are willing to make deals with people all over, especially those dealing in vintage instruments.

Rock Auction - Been looking for an Ovation N-7 you could afford? Check the latest inventory at Rock Auction's used instrument site and place your bid. With descriptions and pictures of guitars, amps, drums, recording equipment and close-out items.

UsedGuitar.com - Whether you want to play 'em on the beaches of Florida, the mountains of California or anywhere else, used guitar.com probably has a guitar for you. Peruse the searchable geographic database of classifieds covering the U.S. and Canada.