David Strohm has served as a member of our board of directors since February 2007. Mr. Strohm has been affiliated with Greylock Partners, a venture capital firm, since 1980, where he has served as a Partner since January 2001, and previously served as a General Partner from 1983 to 2001. Mr. Strohm currently serves as a director of several private companies. Mr. Strohm was previously also a director of DoubleClick, Inc. from 1997 to 2005, Internet Security Systems, Inc. from 1996 to 2006, SuccessFactors, Inc. from 2001 to 2010, EMC Corporation from 2003 to October 2015 and VMware, Inc. from 2007 to October 2015. Mr. Strohm received a B.A. from Dartmouth College and an M.B.A. from Harvard Business School.