While it never really left us, immigration has once again emerged as a central issue for many Americans. For a first-hand look at the history of immigration in the United States from the years 1789 to 1930, this website is quite a pip. Created as part of the Open Collections Program at Harvard University, this online archive includes approximately 1,800 books, 6,000 photographs, and 200 maps. Just to give visitors some sense of what is included here, they will be able to browse through the records of the Immigration Restriction League and take a gander at images Harvard’s Social Museum, which was established in 1903 to illustrate “problems of the social order.” Of course, given this bounty of primary documents, visitors will also want to make use of the keyword search feature and a rather nice timeline.