The International Montessori Index http://www.montessori.edu/
Montessori Books http://www.montessoribooks.com.au/
Lakehills Montessori Tulsa http://www.lakehillsmontessori.com/Tulsa/TulsaIndex.html
3-6 year old Montessori classroom http://www.youtube.com/watch?v=OM1Gu9KXVkk