There are more recent examples but to make it interesting, I'm going to reference this TC article from last fall which uses these examples: Exec, Socialcam, Pair.

Exec was led by Sam Altman!

http://techcrunch.com/2012/08/27/party-rounds-excellent/

"Betable...has received an undisclosed amount of money from 25 investors including Greylock Discovery Fund, FF Angel LLC, True Ventures, Dave Morin...and Yuri Milner..." http://venturebeat.com/2012/07/09/betable-could-disrupt-soci... "