Presage is an intelligent predictive text entry platform.

UseMod is a reimplementation/clone of the original Wiki concept created by Ward Cunningham. A "wiki" is a website that is collaboratively edited by its users, including the ability to alter text written by other users.

simpleproxy acts as a simple TCP proxy. It opens a listening socket on the local machine and forwards any connection to a remote host. It can be run as a daemon or through inetd.

xbs ball-and-sticks plotting program can create still and moving three dimensional models of molecules. X11 and PostScript output are available. Models can be rotated, scaled, etc. Various labeling, shading, lighting, coloring options are available.

pgpdump displays the sequence of OpenPGP or PGP version 2 packets from a file.