• Co-Founder and Partner, Kleiner Perkins Caufield & Byers – 1978 to present. KPCB is one of the largest venture capital firms in the U.S.

• Prior Professional Experience: Previously, Mr. Caufield served as General Partner and Manager, Oak Grove Ventures, a venture capital partnership in Menlo Park, California – 1973 to 1978.

• Company Directorship: Mr. Caufield is the Lead Independent Director. He was a Director of America Online from 1991 until the AOL-Historic TW Merger in January 2001, and has been a Director of the Company since that date.

• Other Directorships: Mr. Caufield is a Director of the Council on Foreign Relations and the U.S. Russian Investment Fund.