Association Montessori Internationale
AMI is the Association Montessori Internationale, a certifying body begun by Maria Montessori.  They have an international list of AMI certified schools.

Oregon Montessori Association
The Oregon Montessori Association is a local resource for Montessori educators and parents.

Montessori Institute Northwest
The Montessori Institute NW is an AMI teacher-training center here in Portland.  They also hold parenting series, educator workshops, and offer support services to area Montessori schools.

North American Montessori Teachers Association
NAMTA is North American Montessori Teachers' Association, and the source of many studies, articles and workshops re: Montessori education. They have a national member school listing.

National Association of Independent Schools
The National Association of Independent Schools is a membership organization and the national voice of independent education. NAIS represents approximately 1,400 independent schools and associations in the United States, and affiliates with independent schools abroad as well.

The Montessori Foundation
This resource includes info about Tomorrow's Child magazine, a great Montessori magazine resource for parents.

The Montessori Dictionary by Annette Haines, Ed. D.

Recommended Reading

Parents of Children 0 to 3 years

Parents of Children 3 to 6 years

Montessori in the Press

This article is a good example of the hands-on work in which Montessori middle schoolers engage!

Montessori Head of School, John Long's blog contains postings that are typically very thoughtful, insightful and point to the cutting edge of education.

Montessori Advocacy

Montessori Madness: A Parent to Parent Argument for Montessori Education, by Trevor Eissler. He has a website called Montessori Madness and you can read excerpts there.

Maria Montessori: The 138-Year-Old Inspiration Behind Spore

There are many cultural innovators with Montessori backgrounds (founders/creators of Google, Amazon, Wikipedia, SimCity). Will Wright's game SPORE taps into his Montessori background to create a wonderful imaginative gaming world.

Stanford Study on Brain Waves