National History Education Clearinghouse
This site collects a vast storehouse of teaching materials for many different content areas and grades. The lesson plans are particularly strong and are reviewed before posting. There is a search gateway on the site or you can simply browse their lists. Click here.

The Center for History & New Media
This link will take you to the general listing of CHNM’s teacher-oriented websites. each of the sites (and the list is added to regularly) contain lesson plans and case studies to assist teachers plan and execute a their lessons in a variety of different content areas. Recent areas of study include Children & Youth, Women in World History, The Making of 1989 and Teaching American History. Click here.

Edutopia
Edutopia is a Lucas Foundation-sourced site that collects a variety of teaching related materials within its site. Of particular note is their Integrating Technology resources that help teachers think of ways to include digital tools in their teaching. Again, there is a search function that assists one looking for specific materials. Click here.
 
Adobe
Adobe has a large number of on demand webinars for viewing. While they are all related to Adobe products, some are transferable (moviemaking, photography). The webinars offer new looks at their products (the ones on using Acrobat for portfolios and assessment are particularly interesting). Click here.
 
The Clearing House
In addition to its cast collection of lesson plans, the Clearinghouse also edits and posts a large collection of reviews of teaching websites. Both helpful and critical, the portal allows a teacher to evaluate sites for use in their classrooms. Click here.

Western Civilization Webography Project
This site, a project of Mills Kelly, a GMU professor, collects student reviews of websites related to the study of Western Civilization. The project has been used by a variety of TAH projects as a model for teaching student awareness in accessing information on the Web. Click here.