Biblio.com is an online marketplace for booksellers specializing in rare an out-of-print titles. Several thousand individual booksellers subscribe to their listing service. Booksellers will upload their book lists along with prices and descriptions of items they own. Searches on the site bring up results from any seller's books. On completed sales, member booksellers pay a percentage of the sale price to the firm. Certain sellers are also charged a monthly fee. The site can collect charge card payment via the web. Biblio.com is probably the 3rd largest books-only website. Many sellers who list stock on Biblio also have their material simultaneously on competitor's sites such as abebooks.com or alibris.com.