Mayhem
De Mysteriis Dom Mayhem, Mayhem, Mayhem, Mayhem Lyrics at Rockmagic.net, Metal-Rules: Interview with Blasphemer, Seventh Realm reviews Mayhem, The True Mayhem, The True Mayhem 1986-1993
Manic Movement
Belgian band's official site contains news updates, a discography, concert schedule, media downloads, a forum, and a chatroom.
Maskim
American band's official site includes news updates, a biography, discography, photographs, and merchandise.
MediEvil
Minsk, Belarus symphonic black metal. News, biography, discography, lyrics, photos, MP3s and links.
Misery's Omen
Australian band's site features news, a biography, release information, and music downloads.
Misteltein
Official website of the Swedish band contains biography, discography, interviews, concerts, and music downloads.
Mordor (Ex-Diabulus)
News, discography, tablatures, message board, pictures, and upcoming events from the Portuguese band.
Mystica
Official site of the Belgian band features news updates and contact information.