- Geometry and the Imagination: A collection of handouts for a two-week summer workshop entitled 'Geometry and the Imagination', led by John Conway, Peter Doyle, Jane Gilman and Bill Thurston at the Geometry Center in Minneapolis, June 17-28, 1991.
- Research Papers in Geometry: Scientific papers written at the Geometry Center that use the unique aspects of hypertext to present information in a non-linear fashion. Many of these include movies or interactive pictures.
- On Euclid's Fifth Postulate: al-Haytham's Innovative "Proof"; and Omar Khayyam's Response: A brief history of the postulate, the inventive "proof" by Ibn al-Haytham, and Omar Khayyam's comments upon its validity.
- Virtual Polyhedra: A growing collection of over 850 virtual reality polyhedra for you to explore.
- Hopf Topology Archive: The Hopf archive is a preprint server for papers in algebraic topology.
- Geometry and Topology Address Book: This menu offers searchable Web and WAIS access to the list of email addresses in geometry and topology maintained by Andrew Nicas and others.
- Center for Geometry Analysis Numerics and Graphics (GANG): An interdisciplinary Differential Geometry research team in the Mathematics Department, College of Natural Sciences and Mathematics, at the University of Massachusetts Amherst.
- Topology Atlas: A multipurpose center for electronic distribution of information related to topology.
- Geometry in Action: This page collects various areas in which ideas from discrete and computational geometry (meaning mainly low-dimensional Euclidean geometry) meet some real world applications.

- Historia Mathematica Homepage: This is the editor's homepage of the journal Historia Mathematica.
- MacTutor History of Mathematics archive
- Mathematicians of the Seventeenth and Eighteenth Centuries
- Math Pages: History of Mathematics: A variety of articles on the History of Mathematics.
- A History of Mathematics at Rutgers: The history of the Mathematics Department at Rutgers University.

- The Mathematics of Fermat's Last Theorem: Presents an overview of some of the mathematics that has either been developed over the years to try to solve the problem (directly or indirectly) or else which has been found to be relevant.
- Fermat's Last Theorem: An Introduction to the History of Fermat's Last Theorem.
- Elliptic Curves: A collection of links on research articles on elliptic curves and related topics (applications, modular forms, FLT).
- Some
History of the Shimura-Taniyama Conjecture: In this
paper Serge Lang deal specifically with the history of
the conjecture which asserts that every elliptic curve
over
**Q**(the field of rational numbers) is modular.

- Abstract
Algebra Online: This site contains many definitions
and theorems from an abstract algebra course based on the
books:
*Abstract Algebra*, Second Edition, by John A. Beachy and William D. Blair; Waveland Press, P.O. Box 400, Prospect Heights, Illinois, 60070 and*Abstract Algebra II*, by John A. Beachy Copyright 1996, 160 pages; available in postscript format. - Group
Pub Forum Home Page: This web site acts as a clearing
house for information about
**Group Theory**. It main feature, the mailing list**group-pub-forum@maths.bath.ac.uk**is for the discussion of any aspect of Group Theory. The reason for the name is that the spirit is supposed to be that of a conversation in a pub at a Group Theory conference. - Multidimensional Analysis: This page gives a brief introduction to Multidimensional Analysis, a generalization of linear algebra which incorporates ideas from dimensional analysis, useful to science and engineering..

- Math Search: Search a collection of over 90,000 documents on English-language mathematics and statistics servers across the Web. You will find University and Research level documents mostly.
- The Integrator: Symbolic computation of integrals.
- Quantum Lie Algebras: The aim of this page is to give a comprehensive overview of the literature in Quantum Lie Algebras.
- Unsolved Problems: A collection of unsolved mathematics problems.
- Fixed Point Theory on the Web: Do we need to add something else?
- Dynamical Systems Homepage: Page dedicted to Dynamical Systems from the Institute for Mathematical Sciences, SUNY at Stony Brook.
- FSU-Math e-print Archive: The latest production of members of the mathematics department at Florida State University.
- Algebraic Number Theory Archives: A preprint archives for papers in Algebraic Number Theory and Arithmetic Geometry.
- Math Pages-Most Wanted List: list of elementary unsolved problems.
- The Erdös Number Project: The home page for the Erdös Number Project.
- Berkeley Preliminary Exams: Those PhD exams!
- The
MathSoft Math Puzzle Page: The MathSoft Math Puzzle
Page, a service of MathSoft, Inc. and the Massachusetts
Institute of Technology's
*Technology Review*. Mathematical puzzles featured here have been previously published in Allan Gottlieb's column in the

Tech Review. Solutions should preferably use Mathcad software. - International Centre for Theoretical Physics: The ICTP located in Trieste, Italy wants to foster the growth of advanced studies and research in the developing countries.
- European Laboratory for
Particle Physics: The European Laboratory for
Particle Physics, located near Geneva in Switzerland and
France is the birthplace of the
**World-Wide Web**.

- The International Mathematical Union (IMU)
- The International Commission on the History of Mathematics (ICHM)
- Unione Matematica Italiana
- The page of the American Mathematical Society
- The page of the Mathematical Association of America
- Society for Industrial and Applied Mathematics
- The Canadian Mathematical Society

- sci.math.research - A newsgroup for professional mathematicians.
- sci.math.symbolic - Do you use one of those symbolic math programs? If you do this is the newsgroup to join.
- Geometry Forum Newsgroup - Newsgroup dedicated to Geometry.
- Math-History-List - Discussion group dedicted to History of Mathematics.

- CervanTex: Grupo de Usuarios de TeX Hispanoparlantes.
- TeX Users Group Home Page: A worldwide organization.
- TeX Sources and Utilities: UPenn Tex Web page.