This site is geared towards younger students and students who play orchestral instruments. It includes several music education games, a teachers guide for concerts, listening activities, famous composers and information about he Dallas Symphony Youth Orchestra.

This site has digital and downloadable flash cards for many music topics including note names, key signatures, piano note names, reading guitar notes, intervals, alto and tenor clefs, and triads. Teachers and students can also customize the flashcards for their own needs. It is appropriate for beginners through advanced musicians and the collection is growing every week.

This free site includes an on-line orchestration course and a free jazz arranging course. There are sample music libraries, a virtual instrument forum, Linux Audio and music discussions related to sound software and open source initiatives, a virtual piano forum, and many more topics for students and teachers.

This is a site for free Choral Public Domain music. It is a libray of many pieces that are in the public domain including great works that most scholarly choirs want in their repertoire or on their library shelves. A great site for student and teacher research. There are also forums on music, singing, and conducting. Accounts are free and easy to manage.

A music theory and performance site for beginning through advanced musicians. It is filled with articles to help teachers and students as well as downloadable and printable sheet music, a bookstore, and customizable lessons for students. There is a free subscription to this site on the homepage.

A wonderfurl collection of .pdfs and mp3s for students and teachers who are studying music theory. Hosted by the Cleveland Institute of Music, there are hundreds of prime examples of music laid out by theory concepts such as scales, chords, forms, voicings, modulations, etc.

The site for MTNA. Many resources available for members and non-members.

A religious website but holds good ideas for music that will fit holiday services for public schools but maintain separation of church and state.

A site for all things choral. Also find used music for sale, job listings, concerts, discussions...

Good site for general music history. Nice high school level. Ads are annoying.

The best site for free Music Theory training exercises. Note reading and aural skills.