Cheap Thrills
- Used, rare and collectible books. Focuses on reading copies of mystery, intrigue, and romance. Order by email.
- http://www.webrighter.co.uk/cheapthrills/

Book-Smiths
- Offers paperbacks of popular fiction, mysteries, and romance. Also has selection of food, cookbook, recipes, biographies, autobiographies, self-help and advice.
- http://www.book-smiths.com/

Now and Then Books
- Sells used fiction of all genres, including science fiction, fantasy, horror, mysteries, thrillers, children's, young adult, romance, and contemporary fiction.
- http://nowandthenbooks.com

O'Briens Book Cellar
- Rare, hard to find, childrens, hardcover, and collectible books. Large collection of copyright-free, public domain ebooks.
- http://www.obrienbooks.com/index.html

Fiction Addiction
- Sells used fiction of all flavors, including science fiction and fantasy, horror, mysteries and thrillers, children's and young adult, romance, contemporary fiction, paperbacks, hardcovers, audiobooks, and collectibles.
- http://www.fiction-addiction.com/

Book-Bin
- Specializes in used books and videos. Has rare books as well as current releases.
- http://www.book-bin.com

Pazzo Books
- Carries selection of used books with particular strengths in 20th century fiction, children's, and the social sciences.
- http://www.pazzobooks.com

Laurie J Books
- Features gently used paperback and audio books. Most books have scanned cover images.
- http://www.lauriejbooks.com

Bondi Books
- Offers a visual book catalog. Located in Japan and ships worldwide. Order by email.
- http://www.bondibooks.com

Aziomedia
- Includes titles from all genres, first editions, and ephemera. All books are cleaned and covered.
- http://www.aziomedia.com

El Pinarillo Books
- Internet-only bookstore which buys, sells, and searches for quality secondhand books. Located in Spain.
- http://www.elpinarillobooks.com

Books Maps Prints More
- Offers used, out of print, and fine books on a variety of subjects. Sells decorative collectible and antiquarian prints, maps, ephemera, magazines, and catalogs.
- http://www.booksmaps.com

Grace's Romantic Reading
- Used novels, including fantasy, historical, horror, mysteries, and romance paperbacks.
- http://www.romanticreading.com/

Gnu Books
- Includes general fiction, romance, science fiction, horror, mystery, spy and adventure, and children categories. Both paperback and hard cover books.
- http://www.gnubooks.net

Book Lady Used Books
- Specializes in gently used paperback, hardcover, and audio books. Order by email.
- http://bookladybooks.com

The Book Cave
- Dedicated to the sale of secondhand books, annuals, comics and magazines. Find Enid Blyton, bestsellers, Commando comics, The Muppets, and Dr Who. Order by email.
- http://www.thebookcave.com/

Christine Kovach, Bookseller
- Catalog of modern first edition science fiction, fantasy, horror, and mystery titles. Many signed books.
- http://www.kovachbooks.com/

Pywrit Used Books
- Specializes in science fiction, fantasy, horror, and romance fiction paperbacks.
- http://www.pywrit.com/

Violet Books
- Specializes in hard to find antiquarian supernatural literature. Site covers a fairly broad range of late 19th and early 20th century fantasy literature.
- http://www.violetbooks.com/

Vintage Library
- Books and information on authors from the early 20th century and the pulp fiction era.
- http://www.vintagelibrary.com/

Nora's Book Nook
- Offers fantasy, mystery and romance used books. Order by email.
- http://www.norasnook.com/

Cobblestone Books
- Specialties include science fiction, fantasy, horror, mystery, and pulps. Catalog is updated weekly.
- http://www.cobblestonebooks.com/