PBS
Pbs: American Roots Music
If teaching a unit about the history of popular music in America, this PBS web site supporting their four-part TV broadcast of a few years ago would make a great resource. Includes lesson plans and oral histories too.
National Endowment for the Humanities
Neh: Edsit Ement: Freedom Riders and Popular Music of the Civil Rights Movement
In this lesson plan, students will consider "The Freedom Riders and the Popular Music of the Civil Rights Movement." The plan includes worksheets and other student materials that can be found under the resource tab.
New York Times
New York Times: Sept. 11: One Year Later
The New York Times Learning Network provides a variety of archived news articles, lesson plans, and resources concerning the issues and events that surfaced from the September 11, 2001 attacks.