Here are a few links to various sites of interest in computational geometry.
Aplicaciones Java is a collection of java applets demonstrating various aspects of computational mathematics.
Furthest Colour Voronoi Diagrams are presented, with a thesis and a Java Applet available on-line.
Computational Geometry, Algorithms and Applications is a great book in this field, written by Mark de Berg, Otfried Schwarzkopf, Marc van Kreveld and Mark Overmars. An electronic copy of the Introduction and Chapter 7: Voronoi Diadrams is available on-line.
QHull is a versatile application, able to calculate various diagrams in many dimensions.
Voronoi diagrams and Delaunay triangulations are demonstrated with the VoroGlide Applet.
Various publications of interest are available on-line from the University of North Carolina.
Games created around Voronoi diagrams have been devised and studied, such as the Voronoi Game and the One-Round Voronoi Game.
How the Diagrams are Calculated
Other Sites on Computational Geometry