| • | All Music Guide - Comprehensive guide to recordings in every genre. Cross-indexed source of reviews, essays, and ratings; all available online, on in-store kiosks, and in print form. Uses submissions from readers. |
| • | Gramophone Classical Good CD Guide - Brief description of the guidebook to classical music. |
| • | Hot Wacks Press - Publisher of guides to bootleg records and CDs. Information about the books, and three articles about bootlegs (recordings of live music of questionable legality). |
| • | Joel Whitburn's Record Research Books - 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. |
| • | Krause Publications - Publisher of several record and CD collecting related books, including price guides. |
| • | Muze - 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. |
| • | Osborne Enterprises and Jellyroll Productions - Producer of price guides (in the "Official Price Guide" series) and reference books for music collectibles. General descriptions of each volume. |
| • | RecordResearcher.com - CD-ROM discography RockRom 8, and book Rock Record 7, with 500,000 records, over a million tracks and musicians. Free sofwared demo download. |
| • | Rough Guides - Over 30 music guidebook titles; features online versions of their Rock, World, and Classical guides. |
| • | Trouser Press - Official site of Trouser Press magazine (1974-1984) and the Trouser Press Record Guides. Reviews and discographies from five editions of the guidebook. |
