Other notable members of the firm include partners organization.organization_board_membership Doerr and Raymond J . Lane , as well as high-profile individuals such as Sun Microsystems co-founder Bill Joy ( who joined as partner in January 2005 ) , former U.S. Secretary of State Colin Powell ( who joined in July 2005 in the newly created position of `` strategic limited partner '' ) , Vinod Khosla and former U.S. Vice President Al Gore , who joined as partner in November 2007 as part of a collaboration between KPCB and Gore 's firm Generation Investment Management ( GIM ) to promote green technology , business and policy solutions .