I don't do American history, but I sometimes run into news of primary sources online that I want to remember. Here's where I'll keep track of them. Often the links will lead to a blog post somewhere that describes the resource and contains the actual link to it.

• For FBI sources, see F.B. Eye on Chicago (blogged by Chicago History on 4/29/2008, links to the FBI electronic reading room)
• The Presidential Tapes at the Miller Center (blogged by Civil War Memory on 4/29/2008)
• Today's Document from the National Archives