Weekly Compilation of Presidential Documents. I was helping a patron today try to verify a quote from a 2002 President Bush speech. I wound up at this site. It is not very fancy but it is easy to use. Almost every speech and statement by President George W. Bush during the years 2001 to 2006 is available here, courtesy of the Government Printing Office.
From the site:
The Weekly Compilation of Presidential Documents is published every Monday and is the official publication of presidential statements, messages, remarks, and other materials released by the White House Press Secretary. The browse feature is available from 2001 forward.