TrouserPress.com
Arts, Music, Collecting, Guidebooks - Trouser Press. Official site of Trouser Press magazine (1974-1984) and the Trouser Press Record Guides.
https://trouserpress.com/
Guidebooks
Joel Whitburn's Record Research Books
Arts, Music, Collecting, Guidebooks - Joel Whitburn's Record Research Books. Information from Billboard magazine's major charts with complete chart data on every recording ever charted.
https://www.recordresearch.com/
Muze Media Information Solutions, a part of Macrovision
Muze provides B2B solutions that enable search, discovery, and purchase of entertainment content, including music, film and video, books, and video games. Our media information products and our sample and discovery services provide the foundation for making all types of entertainment products available on-demand anywhere, anytime, and are used by hundreds of companies worldwide to develop audiences and customers, over any device: PC, Mobile, Over-the-Air, and on Consumer Electronics devices.
http://muze.com/