Reid Hoffman, a partner at Greylock as well as the executive chairman and co-founder of LinkedIn, wears several other hats. His financial acumen, coupled with LinkedIn's steadily growing reputation as the business social networking site, has made him a vaunted addition to several companies' boards. He melds both interests as a board member of Kiva.org, an entrepreneur's marketplace for social micro lending.
In addition, Hoffman is on the board of Tagged, Mozilla, and Zynga. He also is chair of the Westcoast Advisory Board of QuestBridge, a revenue-generating non-profit that places talented low-income youth into 28 top colleges, and a member of the provost council of College Eight of UCSC.