Midi2Cs
Standard MIDI files on the Net
Hubi's MIDI Loopback Device
FreeBase Windows VST Sequencer
FruityLoops Demo
SampleWorld MIDI
MIDI is the language of gods
MIDI Software Development Tools @ harmony central
KeyKit
VMCI Plus(2.03)
MIDINet
MidiFile Library 3
MidiSong++
MIDIShare for MacOS X
MIDIShare Developer's Kit for MacOS X