MPC-Tutor Learn how to use the Akai MPC2000xl music sampler. Includes tutorials, faqs, audio downloads and a discussion forum.
Music Virtuosity Provides live private online music lessons by the use of Webcams. Includes instructor profiles listed by instrument and discussion forum.
Recording Review.com Advanced home recording guides, audio recording forum, Bash This Mix, Bash This Song, and extensive recording gear reviews provide useful information for recording engineers and producers.
RhythmStrummer.com Play, sing, strum, and learn acoustic rhythm guitar online. Teach easy versions of hit songs plus have lots of cool techniques for all levels.
Ricci Adams' Music Theory.net Collection of music theory tutorials. Lessons include staff, clef, and ledger lines; note and rest durations; measures and time signatures; major and minor scales.