Booked for Murder: Independent bookstore specializing in new, used, rare, and collectible mystery books.
Detective Fiction: Exclusively offers crime and mystery fiction with free delivery worldwide.
Fyrbyrd Bookshop: Carries mystery and suspense, from whodunits, police procedurals, famous detectives, noir, and true crime. Also sells rare medical books.
Grave Matters: Offers new, used, and out of print mystery, detective fiction, and related reference material.
Mystery Book World: Devoted to the sale of current, vintage, and popular previously read mystery, crime, and thriller fiction and non-fiction for both collectors and devotees. Site requires Flash.
Regarding Books: Collectible bookseller specializing in mystery and modern first editions.
The Mystery Bookstore: Signed first editions, rare and collectible, new and used, children's. Shop instore (Los Angeles) or online.