For almost 90 years, Monticello has been maintained and kept open to the public by the Thomas Jefferson Foundation, Inc., which owns over 2,500 acres of Jefferson's 5,000-acre plantation. The new Monticello Digital Classroom, launched in 2017, combines content from the prior classroom archive with materials from the Sea of Liberty website. The site includes lesson plans, articles, and multimedia content for use by teachers, students, and scholars of all levels. All materials are cross-referenced, searchable, and available for download.
