MusiXTeX Created by Daniel Taupin, Ross Mitchell, and Andreas Egler, the package offers a set of macros and fonts that enables TeX to typeset music.
PSTricks Access PostScript capabilities inside (La)TeX, by Timothy van Zandt. Site contains documentations, bugs list, and examples of application.
PSTricks.de Unofficial FAQ with lots of examples, resources, and information about converting to PDF.
SIAM Tex Resources SIAM provides macro packages for TeX, LaTeX, and AMS-TeX. Packages are available for SIAM's journals, books, and conference publications. Using SIAM macros helps ensure that author-typset publications conform to SIAM style standards.
SIAM: Tex Resources Packages for SIAM's journals, books, and conference publications supporting LaTeX, Plain TeX and AMS-TeX.
Springer Journals TeX and LaTeX Packages Includes packages for Acta Informatica, Archive for Mathematical Logic, Distributed Computing, Inventiones mathematicae, manuscripta mathematica, Mathematical Programming, Mathematische Annalen, Mathematische Zeitschrift, Numerische Mathematik, Probability Theory and Related Fields.
Springer Journals TeX and LaTeX Packages Includes packages for Acta Informatica, Archive for Mathematical Logic, Distributed Computing, Inventiones mathematicae, manuscripta mathematica, Mathematical Programming, Mathematische Annalen, Mathematische Zeitschrift, Numerische Mathematik, Probability Theory and Related Fields.
Xy-pic A free package for typesetting graphs and diagrams in LaTeX, AMS-TeX and Plain TeX using the principle of logical composition of visual components. Presentation, samples and download.
