These are some links that have been found to useful if your search is national or international in scope.
- Castle Garden: Offers access to an extraordinary database of information on 12 million immigrants from 1820 through 1892, the year Ellis Island opened.
- Digital Horizons: An online treasure house of thousands of images, documents, video, and oral histories depicting life on the Northern Plains from the late 1800s to today. Here you'll find a fascinating snapshot of the lives, culture, and history of the people who shaped life on the prairies.
- Ellis Island Foundation: Allows you to search their database for information about emmigrants who passed throught Ellis Island.
- Family Search: Pilot Site for FamilySearch.org, the official Web site of The Church of Jesus Christ of Latter-day Saints
- FamilySearch.org: The official Web site of The Church of Jesus Christ of Latter-day Saints
- Federation of Genealogical Societies (FGS)
- Genealogy.com: Message Boards, Virtual Cemetery
- GenealogyBank: A newspaper archive for family history research provides information on millions of American families from 1690 to today. Over 4,000 newspapers.
- Library and Archives Canada: The Canadian Genealogy Centre develops databases on various aspects of the population of Canada and hosts other databases created by their partners. Each database includes a comprehensive online help page, which contains helpful information about the records, the database and how to consult the actual records
- National Archives of the United States: The National Archives and Records Administration (NARA) is the nation's record keeper
- National Genealogical Society (NGS)
- One Step Search Site: Created by Stephen P. Morse to provide a superior, simplified search portal used to access information on the Ellis Island, Castle Island and Ancestry.com web sites.
- RootsWeb: Genealogy search site
- Small Town Newspapers: Choose from over 250 small town newspapers you can read free every week! Browse and search scanned newspaper archive from 1865 up to the current edition!
- Genealogy Book Links - an index of the freely available digital books of interest to genealogists.