- Bette Veteto's Homepage - History of Mathematics, very strong on geometry
- Computational Geometry Pages - A comprehensive directory of computational geometry resources
- Erich's Combinatorial Geometry Page
- Erich's Packing Center
- Fibonacci Numbers and the Golden Section - This is the Home page for the Fibonacci numbers, the Golden section and the Golden string. Department of Computing School of Electronic Engineering, IT and Mathematics University of Surrey, UK
- Geometry Center - Center for the Computation and Visualization of Geometric Structures, at the University of Minnesota.
- The Geometry Forum - An electronic community focused on geometry and math education based at Swarthmore college.
- Geometry in Action - This page collects various areas in which ideas from discrete and computational geometry meet some real world applications.
- The Geometry Junkyard - Usenet clippings, web pointers, lecture notes, research excerpts, papers, abstracts, programs, problems, and other stuff related to discrete and computational geometry.
- The Kepler Conjecture - A great source of information on the recent proof of Kepler conjecture about sphere packings.
- Macchine matematiche - Inizio - A wonderful site with pictures of mathematical machines, together with Cabri and Java demonstrations (in Italian)
- Manipula Math with Java - Java applets demonstrating many geometrical and other theorems
- NonEuclid - Hyperbolic Geometry Article + Software Applet - NonEuclid is a software simulation offering straightedge and compass constructions in hyperbolic geometry.
- Problem of the Minimum Rotation-Surface
- Steiner Surfaces - Mathematical descriptions and ray-traced images of every type of Steiner surface
- Tim Lister's Hyperbolic Geometry - Cabri constructions for the demonstration of the basic concepts of hyperbolic geometry in the Poincare disc model.
- Wallpaper Groups - Wallpaper Groups
- Wilson Stothers cabri and conics pages - A site devoted to (mainly projective geometry) illustrated by Cabri II and CabriJava
- Wilson Stothers' Inversive Geometry and CabriJava Pages - A page on inversive geometry with CabriJava illustrations. Includes Steiner's Porism and the arbelos.
- Xah: Visual Dictionary of Special Plane Curves - A Visual Dictionary of Special Plane Curves with stunning graphics
- Usenet geometry.announcements - news: - DejaNews - Remarq
- Usenet geometry.college - news:
- Usenet geometry.forum - news:
- Usenet geometry.institutes - news:
- Usenet geometry.pre-college - news:
- Usenet geometry.puzzles - news:
- Usenet geometry.research - news:
- Usenet geometry.software.dynamic - news:
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