Clues Unlimited
Specialty bookstore located in Tucson, Arizona, with new releases, hard-to-find titles, collectors' editions, signed firsts, and an extensive backlist.
http://www.cluesunlimited.com/

Crippen & Landru Publishers
Specialty publisher of first edition short story collections by noted mystery authors.
http://www.crippenlandru.com/

Dead End Books
An independent mystery bookseller offering hardcover crime novels, hard to find books, imports and signed first editions.
http://www.deadendbooks.com

High Crimes Mystery Bookshop
Specializes in new and used mystery books including vintage titles from the Rue Morgue Press. Located in Boulder, Colorado.
http://www.highcrimesbooks.com/

Murder by the Book
An independent bookstore specializing in mystery books and crime fiction located in Denver, Colorado.
http://www.murderbythebook.com/

Murder by the Book
Offers new and used, paperback and hardcover, mysteries, thrillers and crime fiction. Also carries games, puzzles, and accessories for mystery readers.
http://www.mbtb.com/

My Book House
An online bookstore specializing in signed first edition mystery and detective fiction books.
http://home.earthlink.net/~criswell/

Mysteries to Die For
A bookstore in Thousand Oaks, California specializing in first edition, hardcover, and paperback mysteries.
http://www.mysteriestodiefor.com

Mysterious Bookshop
Specialty bookstore in New York City offering mystery, crime, suspense, espionage, and detective fiction.
http://www.mysteriousbookshop.com/

Partners & Crime, Inc.
Independent bookstore located in New York City, specializing in mysteries, reviews, crime authors and mystery radio plays.
http://www.crimepays.com/

Post Mortem Books
Specializes in crime and mystery fiction featuring new and used books. Based in the UK.
http://www.postmortembooks.com

Sally Owen, Bookseller
Specializes in mysteries and modern first editions. Also features 'Bookaholic,' a free monthly newsletter of new mysteries.
http://www.owenbookseller.com

The Mystery Book Store
Independent bookstore specializing in crime fiction with an emphasis is on imported British mysteries and small press titles.
http://www.mysterybookstore.ws/store/

The Mystery Company
An Indiana-based bookshop featuring books of mystery and suspense. Has searchable online database of books.
http://www.themysterycompany.com/

The Poisoned Pen
An independent bookstore that specializes in crime fiction, carrying British and Canadian as well as American titles. Located in Phoenix, Arizona.
http://www.poisonedpen.com/