- Access Genealogy
- Advantage Archives
- Afrigeneas
- Allen County Public Library Genealogy Center
- American Battle Monuments Commission
- American History & Genealogy Project
- Ancestry Free Index Collections
- Ancient Faces
- Atlas of Historical County Boundaries
- Automated Genealogy
- Behind the Name
- Billion Graves
- Canadian Virtual War Memorial
- Canadiana
- CanGenealogy
- Castle Garden
- Chronicling America
- Civil War Soldiers and Sailors Database
- Commonwealth War Graves Commission
- Cyndi’s List
- Danish Demographic Database
- David Rumsey’s Historical Maps
- Dawes Rolls
- Dead Fred
- Death Indexes
- Digital Commons Collections
- Digital Library of Appalachia
- Digital Library on American Slavery
- Digital Public Library of America
- Digitalarkivet
- Documenting the American South
- Elephind
- Ellis Island
- FamilySearch
- FamilySearch Catalog
- FamilySearch Wiki
- Federation of Eastern European Family History Societies
- FindAGrave
- Free BMD
- FreeCEN
- Freedmen’s Bureau Online
- FreeREG
- Fulton History
- Genealogy Trails
- Geni
- GENUKI
- German Genealogy Group
- Google Books
- Google News Archive
- Guild of One Name Studies
- Hathitrust
- Historic Map Works
- Historically Black Colleges and Universities
- I Dream of Genealogy
- Interment.net
- Internet Archive
- Irish Genealogy
- Italian Genealogical Group
- Jewish Gen
- Jstor
- Kartenmeister
- LDS Genealogy
- Library and Archives Canada
- Library of Congress Digital Collections
- Linkpendium
- Lowcountry Africana
- Midwest Genealogy Center
- National Archives and Records Administration
- National Archives of Ireland
- National Archives Resources for Genealogists
- National Cemetery Administration
- National Library of Australia
- National Library of Ireland
- National Library of Scotland
- National Library of Wales
- Nationwide Gravesite Locator
- New Horizons Genealogy
- New York Public Library Digital Collections
- Olive Tree Genealogy
- One-Step Webpages by Stephen P. Morse
- PastPerfectOnline Collections
- Patriot and Grave Registry
- Reclaim the Records
- RootsWeb.com
- Sanborn Maps
- Smithsonian Digital Library
- The Ancestor Hunt
- The Newberry Collections
- The Official Land Records Site
- The Portale Antenati (Ancestor Portal)
- U.S. Census Bureau
- UK National Archives
- US GenWeb
- US GenWeb Archives
- Veridian Newspapers
- Volksbund German War Graves Commission
- Wie Was Wie
- WikiTree
- WorldGenWeb