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William M. Diefenderfer III has served as a trustee since our initial public offering in October 2004. Mr. Diefenderfer has been a partner in the law firm of Diefenderfer, Hoover, Boyle & Wood since 1991. Mr. Diefenderfer served as Chief Executive Officer and President of Enumerate Solutions Inc., a privately-owned technology company that he co-founded, from 2000 to 2002. From 1992 to 1996, Mr. Diefenderfer served as Treasurer and Chief Financial Officer of Icarus Aircraft, Inc., a privately-owned aviation technology company. He currently serves on the board of SLM Corporation, a NYSE-listed company more commonly known as Sallie Mae. He chairs SLM’s Audit Committee and is a member of its Nomination and Governance Committee and its Executive Committee. Mr. Diefenderfer has served on two special committees of independent directors, chairing one. Additionally, Mr. Diefenderfer serves as Vice-Chairman of the Board of Directors of Enumerate Solutions Inc., as well as chairman of its Audit Committee. On December 31, 2005, Mr. Diefenderfer completed serving a two-year term on the Public Company Accounting Oversight Board’s Standing Advisory Group which began in 2004 and ended in 2005. The Public Company Accounting Oversight Board was established by the U.S. Congress as part of the Sarbanes-Oxley Act of 2002 to oversee and regulate the accounting profession. | 