PGF is a TeX macro package for generating graphics. It is platform- and format-independent and works together with the most important TeX backend drivers, including pdftex and dvips. It comes with a user-friedly syntax layer called TikZ.
This program has been written in frustration because some constructs in LaTeX are sometimes non-intuitive, and easy to forget. It is _not_ a replacement for the built-in checker in LaTeX; however it catches some typographic errors LaTeX oversees. In other words, it is Lint for LaTeX. Filters are also provided for checking the LaTeX parts of CWEB documents.
Asymptote is a powerful descriptive vector graphics language that provides a natural coordinate-based framework for technical drawing. Labels and equations are typeset with LaTeX, for high-quality PostScript output.
PiX, a collection of batch utilities for GNU/Linux and similar platforms, creates mathematically accurate figures, plots, and movies using easy-to-learn syntax. The output is expressly suitable for use with LaTeX; figures may be written in a LaTeX picture environment containing PSTricks, tikz, or eepic macros, or as vector (EPS or PDF) image files.
LaTeX is a high-quality typesetting system; it includes features designed for the production of technical and scientific documentation. LaTeX is the de facto standard for the communication and publication of scientific documents.
TexPoint is a Microsoft Powerpoint and Word add-in that enables the easy use of Latex symbols and mathematical formulas in Powerpoint presentations and Word documents.
Bibster is a Java-based system which assists researchers in managing, searching, and sharing bibliographic metadata (e.g. from BibTeX files) in a peer-to-peer network.