Harmony Central: Midi Tools and Resources:A wealth of MIDI resources, documentation, articles, interfaces, writing software, free classifieds, and manufacturers.
Biab Styles with Bends: Information on how to create a Band in a Box style from a MIDI file.
Convert MIDI Files to Guitar Tabulature: An application which can read standard MIDI files and produce guitar tablature.
Glasstrax Music: Pro Audio & MIDI: Free pro MIDI files; MP3s, Audio & MIDI recording tips; songwriter/composer forums; featured artist original music; Online store; licensed dealer for your favorite MIDI software & hardware; member of ASCAP
MIDI Junction: Tips for MIDI composers; forum for MIDI composition questions; a few original MIDI files that can't be found anywhere else on the net.
MIDI Studio Consortium: MIDIs by several artists. Includes country, jazz, ballroom, easy listening and big band.
MIDIBoard - MIDI Music Community: A full featured MIDI community, with over 10,000 professionally sequenced files.
MIDIWorld: MIDI software and hardware information, synths, sounds and MIDI files, marketplace, free classifieds for musicians.