Legislative branch revolving funds support the '¿¿business-type activities'¿¿ of the House, Senate, and legislative branch agencies. The legislative branch currently has 26 revolving funds, including 7 funds for the House of Rep., 9 for the Senate, 5 for the Architect of the Capitol, 4 for the Library of Congress, and one for the Gov'¿¿t. Printing Office (GPO). As of the close of FY 2008, the funds range in size from $10,000 for the Senate Computer Center Fund to $216.5 million for the GPO revolving fund. In contrast, the legislative branch appropriation for FY 2010 was $4.65 billion. This report traces the establishment, use, and development of these funds. Also, the current status of funds is provided, using standard federal gov'¿¿t. budget object classifications. Illus.