Thomas Jefferson Papers - 27,000 documents from the Manuscript Division at the Library of Congress digitized and available online. Also includes a timeline of Jefferson's life. - http://memory.loc.gov/ammem/mtjhtml/mtjhome.html
Thomas Jefferson - Inaugural addresses, state of the nation speeches, over 200 letters, and Jefferson's writings on the issue of slavery. - http://odur.let.rug.nl/~usa/P/tj3/tj3.htm
Declaration of Independence -- Draft - The Declaration as it is believed to have read when Jefferson submitted it for corrections. - http://odur.let.rug.nl/~usa/D/1776-1800/independence/doitj.htm
An Act Establishing the University - Text of the act which established the University of Virginia. - http://etext.lib.virginia.edu/cgibin/browse-mixed?id=JefBill&tag=public&images=images/modeng&data=/lv1/Archive/eng-parsed
Second Inaugural Address - Delivered Monday, March 4, 1805. - http://www.bartleby.com/124/pres17.html
Thomas Jefferson - Autobiography - Text is broken down into general sections. - http://libertyonline.hypermall.com/Jefferson/Autobiography.html
First Inaugural Address - Delivered Wednesday, March 4, 1801. - http://www.bartleby.com/124/pres16.html
The Avalon Project : Thomas Jefferson Papers - Includes major works, messages to Congress, inaugural addresses, miscellaneous papers, and letters. - http://www.yale.edu/lawweb/avalon/presiden/jeffpap.htm