Very easy to use and very complete Help Site for TI 82, 83, 85, 86, 89, 92, HP48G, CFX9850, Sharp 9600, and Casio FX2 calculators. Site created and maintained by Prentice-Hall. Originally written by Charlie Biles.

Information about many brands and models of calculators used world-wide.

Excellent site for links to tutorials, applications, and other information about a wide range of calculators.

Research compiled by Heidi Pomerantz, Rice University . Published on Texas Instruments site.

Information and examples of how graphing calculators may be incorporated into Secondary Education classroom math instruction