"Academic American History" is a clearly organized and manageable collection of documents, outside links, and introductory texts to antebellum American History (1840-1865). It will be of value as a place to find easily legible transcripts of primary documents, especially pertaining to the American Civil War. The collection highlights some of the more well-known events and documents pertaining to this period, but is by no means exhaustive, and limits American history of this period almost exclusively to the Mexican War and the (the events leading up to the) Civil War. Also, the introductory texts are quite general and the presentation of the primary documents offers little in terms of contextualization. For these reasons "Academic American History" will be beneficial mostly as a broad introduction to this period in American history.
The website is easy to navigate, although it looks somewhat rudimentary and a few of the links didn't work when I reviewed the website.