1.  Bond Dealers of America: Letter from Mike Nicholas, Chief Executive Officer, dated June 24, 2011

2.  Bradley Payne LLC: Letter from John B. Payne, Principal, dated May 25, 2011

3.  Dixworks LLC: Letter from Dennis Dix, Jr., Principal, dated June 1, 2011

4.  First Southwest: Letter from Robert Coulter, Senior Vice President, Chief Administrative Officer, dated June 23, 2011

5.  Leigh Fisher: Letter from Nicholas Davidson, President, dated June 22, 2011

6.  National Association of Independent Public Finance Advisors: Letter from Colette J. Irwin-Knott, President, dated June 24, 2011

7.  Securities Industry and Financial Markets Association: Letter from David L. Cohen, Managing Director, Associate General Counsel, dated June 24, 2011

8.  Third Party Marketers Association: Letter from Lisa Roth, Board Director, dated June 13, 2011