American String Teachers Association - Links to conferences, information about the organization, and pedagogical information for string teachers.
Classical Net - Classical Net features more than 9000 pages and 20,000+
images including more than 6500 CD, SACD, DVD, Blu-ray and Book reviews
and over 5500 links to other classical music web sites
Music Education Online, by Children's Music Workshop - pedagogical materials, sheet music, games and more
Music Teachers National Association - An organization for public and private music teachers throughout the country. Especially helpful for piano teachers.