LexisNexis Congressional
Full text of the Congressional Record from 1985 (99th Congress) forward.
• Tips for finding floor debates.

Thomas (Library of Congress)
Full text of Congressional Record from 1989 (101st Congress) forward.
• Tips for using Thomas to find floor debates.

GPO Access
Full text of Congressional Record from 1994 (103rd Congress) forward.
• Tips for using GPO Access to find floor debates.

A Century of Lawmaking for a New Nation (Library of Congress)
Provides full text of:
Annals of Congress 1789-1824
Register of Debates 1824-1837
Congressional Globe 1833-1873
• Tips for using A Century of Lawmaking to find floor debates.