EphemerArts
Auction catalogs and reference materials on antiques and collectibles.
http://www.ephemerarts.com/

Collectors Book Online
Collectors' price guides.
http://www.collectorbooks.com/

Weyer International Books
Books on custom knives for collectors.
http://www.weyerinternational.com/features.htm

Art Iran Book
Specialists in antiquarian, rare and out-of-print books about Iranology and persian antique art works.
http://www.artiranbook.com/

Collectors Supplies
Booksellers specialising in reference books and price guides on collectables and antiques.
http://www.csbooks.co.uk/

Delve Book Store
Reference books on Antiques and Collectibles; slow loading page.
http://www.delvebookstore.com/

Everything Royal
Catalog of English and Russian Royal Family commemoratives and memorabilia.
http://everythingroyal.com

Sirlampsalot Publications
Offering kerosene and oil lamp catalog reprints, as well as related trade cards, advertising covers and broadsides.
http://www.sirlampsalot.com/

Everything Elephants
Offering a pictorial encyclopedia project, offering information regarding specific collectibles.
http://everythingelephants.com/

Hobby House Press
Book seller specializing in collector identification guides for vintage furniture, dolls, teddy bears, silver, glass and antiques.
http://www.hobbyhouse.com/

John Deere Collectibles
Brenda Kruse's guide to John Deere memorabilia, antiques and collectibles.
http://www.bleedinggreen.com/

Mom and Pop Stores
Books showing antique country store items and saloons and breweriana and their values.
http://www.momandpopstores.com/

L-W Book Sales Inc.
Publishing and distributing reference books and price guides on antiques and collectibles. Wholesale and retail available.
http://www.lwbooks.com

Rugbooks.com
Books on Oriental rugs, carpets and other ethnographic and historical textiles.
http://www.rugbooks.com