ImageZen is a GUI frontend for ImageMagick. It performs most common image manipulation tasks supported by ImageMagick with a pleasant interface. It also allows you to perform batch operations and includes the viewer mirage.
oobash is an oo-style framework for bash 4 written in bash. It provides tools for rapid script development and huge libraries.
A small open blog engine.
A C interpreter for Arc, Paul Graham's dialect of Lisp.