Internet-4-Classrooms
Helping teachers use the Internet effectively. 
www.internet4classrooms.com

TeachersFirst.com
A rich collection of lessons, units, and web resources, carefully selected and reviewed by experienced educators.
www.teachersfirst.com

Annenberg Media Learner.Org
Teacher resources and teacher professional development programming for k-12.
www.learner.org

Lesson Plans
Lesson Plans and resources on the Internet for k-12 teachers. Included are plans for social studies, geography, history and more. Brought to you by California State University Northridge
www.csun.edu