Alfred Publishing for all your music publishing needs.
VS Pro User Forum (independent) to review other people's comments about Datasonics' VS Pro product.
Roland USA for information about Digital VS Workstations that work with VS Pro software. Look in the Digital Recording section.
Audio Production Midi Files for great MIDI files.
WIDI Recognition System is capable of converting polyphonic stereo audio files (MP3, Wave, CD) to MIDI.