Antique Books Directory

Online shop of rare, out-of-print books from over 8,000 independent book stores around the world. - Read more
http://www.alibris.com/

Antique Books, Inc. sells book digitizing services, book displays, book hosting, and book servers for the web. - Read more
http://www.antiquebooks.net

Free online old book price guide with values determined by auction prices. - Read more
http://fadedgiant.net