Doug Cannon's HP48 Page
HP48 calculator programs, programming tips, source code, and other information.

How To Open Your HP48
Illustrated instructions about how to open your HP48. Instructions by David Fenyes. Plus additional information.

hpcalc.org
Premier website for program that run on the HP48, HP38 and HP28 series of calculators Formerly known as hp48.ml.org

Andr Schoorl's
HP48 calculator programs. The interests here are programs and related items for system RPL and assembly language programming as well as symbolic math.

Meta-Kernel
The Meta Kernel is a kernel which enhances and accelerates many HP48 GX functions.

ALG48 Library Page
Libraries on this site: ALG48, RSIM, and AIO48.

Frequently Asked Questions About the HP49
Information about the HP49G, HP's latest calculator still in development.