Euclid's
Elements (enhanced by JAVA capability)
Euclid's
Elements (from Perseus projectHeath comments and Greek!)
Geometry I
(Java
based Geometry from IES Inc. Japan)
Geometry II
(Java
based Geometry from IES Inc. Japan)
Online
Interactive Geometry at Mathsnet.netGeometry in Action
 Excellent! (David Eppstein)
David Eppstein's Geometry
Junkyard. (Try this!...)
Geometry Step by Step from the Land of the Incas A. Gutierrez
The Geometry Center Home Page
The Geometry Center @ Science
U
(Peanut) wingeometry (and other
neat freeware) from Rick Parris
EuclidianReality
(freeware) from Fabien Coulon
Hans
Klein's jspgenerator
dpgraph math art gallery
National Library of Virtual Manipulatives
Flatland,
by Edwin A. Abbott.
Flatland,
by Edwin A. Abbott. ( indexed for easier access to sections)
Jeff Weeks' web site.
Megamath site. MathsNet: Home Page
Sangaku  J.
Temple Geometry Problem (Hiroshi Kotera) (see also Japan Mathematics Museum)
Mathematica Geometry Links
Geometry
and much more! David J. Wright's Bookmarks
Mathematical visualizations
and animations made at CSC
Knot a Braid of
Links Links to many interesting pages.
Bianchi curves and surfaces at the University
of Maryland
Geometry
& Imagination: a most interesting course!
A New Proof
of the Four Color Theorem
Bibliography of Geometry
articles from the Mathematics Teacher till '93
British Topology Homepage
 an interesting connection to much geometric and algebraic topology.

Dynamic Geometry
at the Math Forum.(resources for software.)Dynamic Geometry® Explorations (at KeyMath)
A Gallery of Interactive
OnLine Geometry  Including

Interactive
Models of Platonic and Archimedean Solids

Interactive
Triangle Tiling Maker

Kali:
Symmetry group
Japan Mathematics
Museum
Centre for the Popularisation
of Mathematics (U of Wales, Bangor)
Communications in Visual Mathematics(an
online MAA journal)
Interactive Methods
for Visualizable Geometry (An online article on usiing computer
graphics in Geometry.)Visual Geometry Pages
with JavaView (Visit this!)
dpgraph math art gallery
gallery.wolfram.com
Fractals
MakeaFractal
Fractals exploration.
Tesselations Home Page(A commercial
link)
The KnotPlot Site: A Package for Visualizing Mathematical Knots
George Hart's Resources...worth
a visit or two:)George Hart's Virtual
Polyhedra Page at Hofstra University.
poly: Macintosh
and Windows shareware for viewing and building one hundred polyhedra, including
all regular and semiregular polyhedra
Symmetry
and the Shape of Space by Chaim GoodmanStrauss
symmetry of polyhedra
via polymorph construction models
