by Geni, Inc. (David Sacks, Alan Braverman)
Free • Subscription • Online • Full Featured
Allows families to collaboratively build their family tree. When the user adds a relative’s email address, that relative is invited to join the tree. Your family’s information is kept private as you can only search for people who are in your family. When separate trees begin to overlap, they can be merged, with the potential of producing a world family tree. In November 2012, Geni was purchased by MyHeritage.