Beatles Stamps: Stamps on the Beatles
Composers on Stamps: Stamps on Music Composers of all countries and all styles
Elvis In The Post: International postage stamps issued in the King's honor.
Musical Stamps: Information about music on stamps.
Ofer's Music Stamps Collection: Gallery of personal collection of world-wide stamps; invites comments and exchanges.
Opera - A Philatelic History: The history of opera as shown on postage stamps of the world.