Another Yahoo Loves Group Buying, As Top Ad Sales Exec Mitch Spolan Heads to LivingSocial

Yahoo has lost another one of its top advertising sales execs, Mitch Spolan, to a hot start-up of the moment--this time to LivingSocial.

The move by Yahoo's head of North American field sales is the second major loss by the Silicon Valley Internet portal to a social buying site. Another Yahoo sales lead, Lee Brown, left Yahoo late last year to head sales at Groupon.

Jessica Paré Leelee Sobieski Teri Hatcher Lauren Bush Natalie Zea