1. FamilySearch: largest collection of free genealogical records in the world

2. WikiTree: enormous collaborative family tree

3. Fulton History: historical newspapers from the US and Canada

4. Find a Grave: locate your ancestors in cemeteries across the globe

5. Google News Archive: millions of archived newspaper pages

6. US National Archives: official US National Archives site, many free genealogy databases and resources

7. Automated Genealogy: indexes of the Canadian census

8. FreeBMD: civil registration index of births, marriages and deaths for England and Wales

9. USGenWeb Project: massive free genealogy resource directory by US state and county

10. WorldGenWeb Project: genealogy resources by country and region, not to miss