For those that have enjoyed finding information about your ancestory through our databases (Ancestry Library Edition and Heritage Quest) then I think you may also enjoy this (description from refdesk.com):
"More than 22 million passengers and members of ships' crews entered the United States through Ellis Island and the Port of New York between 1892 and 1924. Information about each person was written down in ships' passenger lists, known as "manifests." Manifests were used to examine immigrants upon arrival in the United States. Now you can search these millions of records for information on individual Ellis Island passengers."