The U.S. Government Printing Office (GPO) has published an updated comparison of the legislative content included on GPO Access, THOMAS, House.gov, Senate.gov, CQ.com, Hein Online, LexisNexis Congressional, and Westlaw. The report comes in three PDF parts:
The Law Librarians Society of Washington DC (LLSDC) also maintains comparison charts. See:
- Electronic Sources for Federal Legislative History Documents
- Sources for Congressional Bills and Resolutions
More outstanding reference tools are available from LLSDC on the LLSDC Legislative Sourcebook page.
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