Wikitree

Growing since 2008, WikiTree.com is a 100% free shared family tree website that balances privacy and collaboration. Community members privately collaborate with close family members on modern family history and publicly collaborate with other genealogists on deep ancestry. Since all the private and public profiles are connected on the same system this process is helping to grow a single, worldwide family tree that will eventually connect us all and thereby make it free and easy for anyone to discover their roots. See http://www.WikiTree.com/