AMS TeX Resources  
   TeX-related style file collections, fonts, manuals, and author packages for preparing submissions to American Mathematical Society publications. Platforms: PC (DOS and Windows), Macintosh (for Textures, OzTeX or CMacTeX), and Unix.
   http://www.ams.org/tex/

Interesting TeX-related URLs  
   Maintained by TUG.
   http://www.tug.org/interest.html

CTAN  
   The Comprehensive TeX Archive Network is a set of fully-mirrored ftp sites providing the most complete, up-to-date TeX-related software possible.
   http://www.ctan.org/

Knuth: Message about TeX Fonts  
   Important message to all users of TeX.
   http://www-cs-faculty.stanford.edu/~knuth/cm.html

TeX Resources  
   A list maintained at U Penn.
   http://www.math.upenn.edu:80/TeX.html

Donald Knuth's Reward Check  
   An example of a reward check by DEK and how to get one.
   http://truetex.com/knuthchk.htm

(La)TeX Navigator  
   A (La)TeX encyclopaedia from Loria. Also available in French and German.
   http://tex.loria.fr/english/

Mathematics For Computer Generated Spoken Documents  
   AsTeR --Audio System For Technical Readings-- is a computing system for rendering technical documents written in LaTeX in audio.
   http://www.cs.cornell.edu/info/people/raman/aster/demo.html

TeX Merchandising  
   Merchandising for TeX and friends. On-line ordering with PayPal.
   http://www.dream.kn-bremen.de/tex/merchandising/

CTAN Search  
   Online search interface for CTAN. Search CTAN for a file or search the TeX catalogue by Graham Williams for a keyword.
   http://www.ctan.org/search/

The TeXability Site  
   Shows short (mostly single page) documents with immediate access to graphical results and source to demonstrate the power of TeX.
   http://texability.corlan.net/

The TeX showcase  
   Edited by Gerben Wierda, it contains examples of what you can do with TeX, from typesetting of scientific papers to music, multimedia, genealogical presentations, dynamic documents, multilingual documents.
   http://www.tug.org/texshowcase/

TeX showcase  
   Examples of professional TeX typesetting of books in the humanities, selected by the Association of American University Presses.
   http://www.tsengbooks.com/pages/2/index.htm

Achim Blumensath: Download  
   Contains manual and source code for Ant which is a typesetting system similar to TeX written in Objective Caml. Various LaTeX packages are also available.
   http://www-mgi.informatik.rwth-aachen.de/~blume/Download.html

PyTex  
   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.
   http://www.pytex.org/