www.polyvision.com Support for the boards..updates, downloads etc..
Educators wiki--http://polyvision.wikispaces.com/ Resources, sharing, ideas.
SAS Curriculum Pathways (http://tinyurl.com/lmch5o) -- free membership; free resource materials for Grades 8-12
includes interactive materials as well as lesson materials.
http://rmeducation.com/ Support for the easy teach software.
Also can download a "reader" (http://rmeducation.com/easiteach/reader) for students to place on their computers, so they can play what is saved on the webpage, wiki, etc..