This is an encyclopedic compendium of articles about every aspect of Thomas Jefferson world: people, places, objects, events, activities, and ideas. Built on MediaWiki, only individuals authorized with edit privileges may create or change the content. Many information resources are linked to the articles, connecting to the Thomas Jefferson Portal research database and the Thomas Jefferson Digital Library. Additional links are provided to external web sites, allowing individuals to find individual letters, maps, or documents that exist in the digital Internet realm. Launched in July 2007, and now with 400 content articles, plans are in place to expand the TJ Wiki by at least ten fold.