ArabTeX - Arab language support

A package by Klaus Lagally for typesetting Arabic, Persian, Urdu, Pashto, and Hebrew scripts with LaTeX.

Blue Sky Research

makers of a TeX implementation for the Macintosh.

CervanTeX - Grupo de Usuarios de TeX Hispanohablantes

Official website of the Spanish-speaking TeX Users Group. Provides resources, documentation, and community.

ChkTeX - A linter for LaTeX

ChkTeX finds typographical errors in LaTeX documents. This is the official homepage for the project.

CTAN: Package hyperref

The hyperref package handles cross-referencing commands in LaTeX to produce hypertext links, replacing older HyperTeX conventions.

Czech and Slovak TeX User Group (CSTUG)

Czech and Slovak TeX User Group (CSTUG)

DANTE e.V.

Deutschsprachige Anwendervereinigung TeX e.V.

FAQ - comp.text.tex

Tex, LaTeX, ...

LaTeX Help 1.1

HTML version with full text search.

Leslie Lamport - Microsoft Research

Homepage of Leslie Lamport, the initial developer of the LaTeX document preparation system and winner of the 2013 Turing Award.

MacTeX - TeX Users Group

MacTeX is a modern, easy-to-install TeX distribution for macOS. It is based on TeX Live and provides everything needed to typeset documents.

MathJax | Beautiful math in all browsers

A JavaScript display engine for mathematics that works in all browsers. The modern standard for rendering TeX and LaTeX formulas on the web.

Qué es LaTeX y Primeros Pasos - Apuntes de Ciencia, Gestión e Ingeniería de Servicios

Breve artículo en el que se explica qué es LaTeX y muestra un ejemplo de uso. Además, explica cómo empezar a trabajar en LaTeX de forma sencilla, mediante aplicación de escritorio y mediante un sitio web.

Sinhala support in TeX/LaTeX

Resources and packages for typesetting the Sinhala script available on the Comprehensive TeX Archive Network (CTAN).

TeX Users Group

TeX Users Group

TeX4ht: A TeX/LaTeX to HTML/XML converter

A highly configurable converter capable of translating TeX and LaTeX documents to HTML, XML, and other hypertext formats.[cite: 2]

TeXShop for Mac OS X

A free TeX previewer and editor for macOS. It provides an integrated environment for working with LaTeX, including spell-checking features.

Vim-LaTeX: The LaTeX Suite for Vim

The official project for Vim-LaTeX, a powerful suite of tools and settings for editing LaTeX documents in the Vim editor.[cite: 2]

Web2c

my implementation of TeX and friends which translates the original WEB sources into C, so they can be readily compiled on modern systems.