Catholic Encyclopedia - Simone Martini: Artist's biography.
CGFA - Simone Martini: Image gallery of artist's works and a biography from MS Encarta '97.
ChristusRex - Simone Martini: Artist's biography and the most famous of his works.
Olga's Gallery: Simone Martini: Comprehensive collection of artist's works with a biography and historical comments.
Simone Martini at Arthistory.cc: Short biography and a collection of images of artist's works.
Simone Martini: Christ Discovered in the Temple: Article about the exhibition in National Gallery, London.
The Columbia Encyclopedia: Martini, Simone: Artist's biography.
Web Gallery of Art: Simone Martini: Large image gallery of artist's works and a biography.
WebMuseum: Martini, Simone: Artist's biography and a collection of images.