Artcyclopedia: Simone Martini on the Internet - Links to artist's works in art museum sites and image archives worldwide.
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.