1. Congressional Universe: http://web.lexis-nexis.com/congcomp
2. Thomas: http://thomas.loc.gov
3. GPO Access: http://www.access.gpo.gov
4. Federal Legislative History Research: http://www.llsdc.org/sourcebook/fed-leg-hist.htm
5. Federal Legislative History Tutorial: http://www.infoctr.edu/tutorial/leghist/