A Book Lover's Haven
Sells older series, paranormal, and time travel romances. Carries a selection of other types of books also.
http://www.booklovershaven.com/

A Novel Place
Used and new fiction, non-fiction, paperback, and hard cover books. Includes rare and hard to find volumes. Free custom searches also available.
http://www.anovelplace.net

Books Under Three Bucks
Sells used romance paperback and hardcover books. Order by email.
http://books57.net/

Central Booksource
Discounted new and used paperbacks, specializing in romance. Also offers book consignments.
http://www.centralbooksource.com/

Collectible Romance Books
Features books by authors Catherine Coulter, Beatrice Small, Sandra Brown, Johanna Lindsey, Lavyrie Spencer, and Amanda Quick.
http://www.collectibleromancebooks.com

Emerald Coast Book Haven
Offers collections of fomance, science fiction and fantasy, mystery, and popular fiction titles.
http://www.ecbooks.com/

Hard to Find Books
New and used romance novels including out of print books and hard to find collectibles.
http://www.hardtofindbooks.com/

Just Romance
Specialising in second-hand popular, out-of-print and hard-to find romance books, including historical, paranormal and contemporary romance books.
http://justromance.com.au

Mostly Romance
Used bookstore specializing in romance. Also a number of books in other genres. Offers help searching for elusive books.
http://www.mostlyromance.com/

My Little Book Bin
Used romance books by many authors. Harlequin, Silhouette, Zebra and Avon books. Order by email.
http://www.webspawner.com/users/mylittlebookbin/index.html

New and Recycled Romances
Romances from series to regency to novels.
http://geocities.com/newrrbooks/

Romance Used Books for Sale
Browse by alphabetic listing or by major authors. Order by email.
http://www.angelfire.com/biz6/aaabook/ang_ro.html