National Center for Montessori Education: a non-political association with the goals of promoting unity among Montessorians and providing creditable Montessori Teacher Education programs
The Montessori Foundation: a nonprofit organization dedicated to advancement of Montessori education in the United States and abroad
The Montessori Index: detailed comparative information for selecting a school or training center
Montessori Connections: a website for the Montessori community
