
Collection of encyclopedic entries, book chapters, overview essays, primary sources, timelines, images, maps and charts, biographies, etc. for 500 years of the African-American experience. Coverage: Varies.

Collection of newspaper, magazine and scholarly/peer-reviewed articles, primary sources, images and videos, and encyclopedia entries for United States history. Coverage: varies.
Most of these websites contain the full text to speeches. A few of them also contain audio speeches or clips.