Program licensed under the GNU GPL which parses LaTeX math expressions emitting images which can be used directly in HTML documents. Introduction, manual and download.
Python programming plus TeX typesetting. Information about the concept, documents and links to the SourceForge page with download and mailing list. Also home of Active TeX, a forerunner of PyTeX, and the TeX daemon.
An extended version of TeX that can create PDF directly from TeX source files and enhance the result of TeX typesetting with the help of PDF. When PDF output is not selected, pdfTeX produces normal DVI output.
Omega is an extension of TeX developed by John Plaice (Universite Laval, Canada) and Yannis Haralambous (Atelier Fluxus Virus, France) aimed primarily at improving TeX's multilingual abilities.