Collector Network - Links for Coins, Bank Notes, Cards, and Stamps Collectors.

Comprehensive guide to the best music recordings in every genre. Cross-indexed source of reviews, essays, and ratings, all available online and in print form. Uses submissions from readers.

Publisher of guides to bootleg records and CDs. Information about the books, and three articles about bootlegs (recordings of live music of questionable legality).

Information from Billboard magazine's major charts with complete chart data on every recording ever charted. Short descriptions and sample pages from this large line of books.

Longtime publisher (over 50 years) of directories of recorded music for retail stores; their data is now available for purchase to place on other websites and in-store kiosks.

Producer of price guides (in the "Official Price Guide" series) and reference books for music collectibles. General descriptions of each volume.

Publisher of several guidebooks. Artists' sections on their site often contain an entry from "The Rolling Stone Album Guide."

Music guidebook titles on rock, reggae, world music, jazz, classical and opera. Only the introductions, table of contents and sample entries are available online.

Monitors auctions to gather statistics on movie soundtrack and film score CD prices, composers, out-of-print status, rarity and used CD availability.