The most complete guide to civil rights sites, by Jim Carrier, was published in 2004. The kickoff “party” was held at the Library of Congress. Carrier presented a sampling of the sites, with a slide show, and a Q&A.
C-Span recorded the presentation. You can watch it here:
The book, with a forward by Rep. John Lewis, is available in paperback at Amazon, Barnes & Noble, or your favorite book store.