Social Networking is not only about Facebook. Online social networks provide an additional way to communicate and collaborate with other teachers in other schools or countries. Here are some social networks you might want to join.

Edk-12 - A community of teachers with powerful educational on-line support, a medium to collaborate with peers and educational experts. Great site with lots of resources, lessons, video model lessons, mini-courses, and many other resources.

Classroom 2.0 - Social network for those interested in Web 2.0 and social media in education.