AMG All Music Guide
An enormous database you can search by artist, song title, album, style, or label; includes various types of music, discographies, and reviews.Billboard Online
Music industry news and album charts; some services are for subscribers only.Opera Glass
Provides information on operas, composers, and libretti; links to opera companies and performers.Rock & Roll Hall of Fame
This official Web site provides information about the inductees and museum programs.Worldwide Internet Music Resources
This academic gateway to a wide variety of international sources covers many kinds of music, musicians, research material, and publications.