SF GATE - Nov 29 - Geni.com, the online genealogy site that spawned the successful enterprise social networking company Yammer, was bought by rival MyHeritage of Tel Aviv. Exact terms of the Geni-MyHeritage deal were not disclosed, but the eight-figure transaction was a mix of cash and equity. Sacks started the online family tree building service in 2007. Yammer was created as a better way for Geni workers to communicate internally, and in 2008, it was spun out into a standalone company that grew like wildfire. Earlier this year, Yammer had 4M users at 200K companies in 160 countries.