Music Together
Early childhood music program stressing adult involvement in mixed-age classes involving singing, moving, chanting, listening, and exploring musical instruments, founded in 1987. Locator, history, articles.
http://www.musictogether.com/

Kindermusik International, Inc.
Publishes curricula and licenses schools in more than 30 countries to teach music and movement to children from infants to age 7. Founded in Germany, now based in North Carolina. History, instrument and publication sales, school locator.
http://www.kindermusik.com/

So This Is Opera
Michigan-based lyric soprano and music educator Yvette Lewis performs program introducing children to opera in schools. Testimonials and press, artist-in-residence program, links.
http://www.operakids.com/

Music for Young Children
Instruction in keyboard, singing, solfege, rhythm, ear training, sight reading, theory, history, and composing for children to age 11 at schools in North America, Asia and Oceania. Teacher list.
http://www.myc.com/

Gallinamusic.com
Home of composers Michael and Jill Gallina. View scores and listen to educational music, musical theatre, vocal music, choir music, multicultural music, and partner songs.
http://www.gallinamusic.com/

Musikgarten
Offers training for early childhood music teachers in North America and Asia. Studios, instruments, classroom materials, and workshops.
http://www.musikgarten.org/

Dallas Symphony for Kids
Games, music, classroom activities, and information about going to the symphony.
http://www.dsokids.com/

Makin' Music
Arkansas company offering home school music instruction and workshops for early childhood music teachers at Arkansas Tech.
http://makinmusic.net/

Children's Music
Articles by Jennifer T. Stack and links to related sites.
http://www.suite101.com/welcome.cfm/childrens_music

DataDragon: Music Education
Provides tutorials and guides, on musical styles, music history, and instruments, with audio examples.
http://datadragon.com/education/

The Musical Brain
Explains the brain's reaction to music in terms suitable for both children and scholars. Brightly colored illustrations, bibliography.
http://faculty.washington.edu/chudler/music.html

Pratt's Educational Resources: Children's Music
Features children's songs, lesson plans, musical instrument crafts, activities and related links.
http://www.fastq.com/~jbpratt/education/music/children.html

Opera for the Young
Engages and educates children about opera with professional, school-based performances, involving students in performance and production. Available throughout US although specializing in Midwest area.
http://www.operafortheyoung.org/