Kile is a feature-rich LaTeX editor
A simple LaTeX {picture} drawing tool
Another drawing editor for LaTeX with PSTricks & TikZ
An editor for structured documents
Vector drawing program for LaTeX using PSTricks
A documentation and report generator for systems biological models
JabRef is a graphical application for managing bibliographical data
proof verifier for mathematical proofs and documentation generator
LaTeX, AscciMath and MathML editor developed in Javascript and HTML