Changes

"Digital History" is a free textbook and sourcebook for United States History written and created by [https://liberalarts.utexas.edu/history/faculty/shm654 Steven Mintz] and [http://faculty.coe.uh.edu/smcneil/ Sara McNeil]. It's a great site that has quite a ton of content. Additionally, "Digital History" is supported by the University of Houston. Digital History also provides quizzes, interactive history modules, timelines, and teaching resource that include lesson plans and handouts. The site does use flash and some browsers will block some of the images.