The organization iEARN helps teachers and students in over 115 countries work together online to produce collaborative projects, email and write papers together, and participate in service learning projects. http://www.iearn.org/
IDEA is a joint project of the International Society for Education through Art (InSEA) and UNESCO. The website provides "international models of good practice in arts education" through sample lesson plans from around the world. http://cspace.unb.ca/idea/