• Software di geometria iperbolica (non euclidea), in italiano
  • Museo per la Matematica ( Il giardino di Archimede)
  • History of Mathematics (biographies, famous curves)
  • Visual Dictionary of Plane Curves (by Xah)
  • Euclid's Elements (with Java Applets by D. Joyce)
  • ACE (Algebraic Combinatorics Enviroments)
  • CAIN Computer Algebra Systems
  • CoCoA (Computational Commutative Algebra)
  • EAGER (European Group in Algebraic Geometry)
  • Mathesis Firenze
  • Unione Matematica Italiana
  • European Mathematical Society
  • American Mathematical Society
  • Geometria Computazionale a Milano (Prof. A. Alzati)
  • Rubik's Cube
  • E-print archive (math papers)
  • Net Lib (Archive of math software)