Some sites you might like:

http://www.eyewitnesstohistory.com/index.html Has primary sources for many people who contributed directly to the Civil Rights Struggle.

http://www.tolerance.org/ This is the active arm of the Southern Poverty Law Center. If you are an educator, this is particularly valuable.

http://www.nps.gov/nr/travel/civilrights/ These are Civil Rights sites run by the National Park Service. There are many, and what is nice is that they have curriculum developed for teachers.

http://www.nvrm.org/ this is the website for the National Voting Rights Museum in Selma that we visited.

I will try to post more later. Ed