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.