An award-winning drawing program for children of all ages
A simple LaTeX {picture} drawing tool
Professional vector flow chart drawing software
Vector drawing program for LaTeX using PSTricks
Simple and intuitive 2D vector drawing for electronics and not only.
Free drawing software for Windows, Mac OS X, and Linux
A drawer for origami crease pattern
OBSOLETE; try http://drawpile.net/ instead!
Vector based drawing software designed for RPGs