AIDA - The only art exhibition recycling services in the world, offers Mondriaan drawings and sketches.
Artcyclopedia: Piet Mondrian - Dutch neo-plasticist painter (1872-1944). Links to the artist's works in art museum sites and image archives worldwide.
Mondriaan - Collection of images of artist's works and a biography.
Mondriaan Art by Evolution - A program generating images resembling art by the famous artist Piet Mondriaan by way of evolution, free for download.
Mondrian - An applet to randomly generate modern art in the style of Piet Mondrian.
Mondrian On-Line Resources - A collected list of internet based resources, links, and other bits and bobs for the artist Piet Mondrian.
Mondrian, Piet - A page with a short biography, and the 'Composition in Red, Yellow and Blue'.
Philately Universe Special: Piet Mondriaan - Dutch painters on stamps.
Ptank.com: Mondrian Machine - Uses JavaScript to approximate the style of Piet Mondrian's most recognizable paintings. Also provides a brief biography, examples of works and description of neoplasticism.
Stichting Mondriaanhuis - The Mondriaanhuis foundation is housed in the birthplace of the painter, his biography, exhibitions, and links.
The ArtFile: Piet Mondriaan - His biography, a gallery, and links to related styles.
WebMuseum: Mondrian, Piet - Contains a few paintings, and an article about pure abstraction.