Out of Print and Rare Books

AcqWeb Directory of Rare and Antiquarian Book Vendors

AddALL Used and Out of Print Search 

Advanced Book Exchange (Abebooks) 

Alibris 

Antiquarian Booksellers' Association of America 

Antiqbook--European out-of-print site 

Bibliophile.net 

BookFinder.com 

Georgia Antiquarian Booksellers Association 

TomFolio.com 

USBE Back Issues Shelf List--online list of journal back issues 

Your Old Books--FAQ about rare books and book values