- The MacTutor History of Mathematics Archives
- Eric Weisstein's World of Mathematics (at Wolfram Research)
- WWW Virtual Library: Mathematics (at Florida State University)
- The Math Forum (at Swarthmore)
- The Geometry Center (at the University of Minnesota)
- Mainly Mathematical Gateways (at University of Georgia)
- National Council of Teachers of Mathematics (NCTM) Standards Page (at The Math Forum)

- Number Theory Pages (courtesy of Kevin Brown)
- Things of Interest to Number Theorists (at the Number Theory Web)
- Sloane's On-Line Encyclopedia of Integer Sequences (at AT&T)
- The Prime Page
- Graph Theory Tutorials (at UTM)
- Art Gallery Theorem Applet (at Tel Aviv University)
- Preuve, Prueba, Proof (Nicolas Balacheff's site)
- Fifteen Proofs of Euler's V-E+F=2 (at the Geometry Junkyard)
- Real Analysis (at Seton Hall)

- The Combinatorics Net
- The Electronic Journal of Combinatorics
- The Combinatorial Object Server (rather advanced, and very cool)
- Dictionary of Combinatorics (Joe Fields' on-line edition at UIC)
- Arithmetic properties of Binomial Coefficients (at University of Georgia -- also rather advanced but very interesting)
- The Chance Project (includes several on-line courses)
- Introduction to Probability (at Dartmouth; this site includes an good introductory probability text and links to some wonderful applets).

© 2000 Roger B. Blumberg