David Ginsbourger
IMSV

XHTML and CSS

XHTML and CSS standards on the Web Design and Applications section of w3.org

XHTML tutorial of the W3C Consortium

XHTML 2.0 tutorial of the W3C Consortium

Tutoriels XHTML et CSS sur le site des tuteurs de l'ENS

Multilingual CSS tutorial of w3.org

PHP

The "official" php.net website

PHPFrance

Club des développeurs Web PHP sur developpez.com

Latex and related

CTAN , the Comprehensice TeX Archive Network

MikTeX

TexnicCenter

JabRef

bib2xhtml

bibtex2html : a small PHP script which converts a BibTeX file into Html code