The Jefferson Literary and Debating Society
- Based at the University of Virginia, the oldest continuously existing collegiate debating society in North America.
- http://www.jeffersonsociety.org/

Jefferson Memorial, Washington, D.C.
- The National Parks Service, which maintains the memorial, lists on this web site all the writings that are on the walls and their sources.
- http://www.nps.gov/thje/home.htm

Thomas Jefferson Heritage Society
- An organization dedicated to furthering the honor and integrity of Thomas Jefferson, and to promoting his vision and ideas, and their application in our times and in the future.
- http://www.tjheritage.org/

Poplar Forest
- "Jefferson enjoyed "the solitude of a hermit" at his year-round retreat near Lynchburg, Virginia". History, restoration and events at Jefferson's second home.
- http://www.poplarforest.org/

The Monticello Association
- This association of descendants of Thomas Jefferson look after the gravesite of Jefferson and determine who gets buried there.
- http://www.monticello-assoc.org/