Wikipedia: Mona Lisa
Overview of Leonardo da Vinci's famous masterpiece, Mona Lisa, with the history, aesthetics, and the painting's role in popular culture. Also includes the identity of the model.
Mona Lisa Images for a Modern World
Features parodies of Leonardo da Vinci's famous painting and discussion from a modern cultural perspective.
Mona Lisa Mania
Offers Mona Lisa related fine art, prints, posters, gifts, and collectibles, as well as related links, historical information, and theories.
PBS: Theft of the Mona Lisa
About the August 21, 1911 theft of the most famous painting in the Louvre.
BBC: Mona Lisa
Features historical information, painting techniques, and a desktop wallpaper image of one of Leonardo's favorite paintings.
Artchive: Mona Lisa
History and analysis of the painting by Leonardo da Vinci. Essay written by E.H. Gombrich.
WebMuseum: Mona Lisa
Offers a high-resolution image and discussion of the portrait of Mona Lisa, the wife of Francesco del Giocondo who lived during 1479 to 1528.