History - HSTA 200 (U.S. Immigration) : Immigration Records

Devoted to African American genealogy. Site offers chat, message boards, surnames lists, and more.

Castle Garden was the precursor to Ellis Island. Over 73 million Americans can trace their ancestors to this early immigration period.

Database of more than 22 million passengers and ships' crews that came through Ellis Island between 1892-1924. Create a free account for some access.

List of indexes of passenger lists for ships that sailed to the U.S. from 1820-1940. Some information may require subscription.

GENUKI is one of the best umbrella sites for Ireland and, in fact, all of the British Isles.

Good for Jewish & East European genealogy. Watch for helpful tutorials on ethnic genealogy offered by the major sites

Overview of the history of ethnic groups in the U.S. in alphabetical order.

Passengers arrivals and border crossings. Includes some online indexes.