The ImageJ Plugins project is a source of custom
plugins for the Image/J software.
Figtex2eps is a bash script for automating the process of creating Postscript images (or PDF) with embedded LaTeX symbols and alike made with Xfig.
TEdit is a text editor which can learn text conversions and an unknown language's syntax from user-supplied examples. It's constructed using the TinyBrain framework.
A network IDS and IPS engine.
A tool that finds "orphaned" RPM packages.