ANTLR 3 Eclipse Plugin - This plugin helps you develop ANTLR 3 grammars inside Eclipse. - http://www.javadude.com/tools/antlr3-eclipse/
How to use ANTLR with C++ - Tutorial on generating C++ output with the ANTLR Parser Generator using Visual C++ 6.0. - http://www.imada.sdu.dk/~morling/antlr/
CSCE 425/825 - Compiler Construction - Course at the Department of Computer Science & Engineering, University of Nebraska–Lincoln, using ANTLR. - http://www.cse.unl.edu/~dwyer/csce425/index.shtml
COMS W4115 Programming Languages and Translators - Compilers course at the Department of Computer Science, Columbia University using ANTLR. - http://www.cs.columbia.edu/~sedwards/classes/2002/w4115/index.html
Terence Parr Introduces ANTLR 3.0 - In this interview with Artima, Terence Parr, creator of ANTLR, discusses the most significant new ANTLR features. - http://www.artima.com/lejava/articles/antlr_3.html
ANTLR Parser Generator - Version 3 of ANTLR framework for constructing recognizers, interpreters, compilers, and translators from grammatical descriptions containing actions in a variety of target languages. - http://antlr.org/
ANTLR v2 - Formerly PCCTS, a language tool which provides a framework for constructing recognizers, compilers, and translators from grammatical descriptions containing Java, C++, C# or Python actions. - http://www.antlr2.org/
The Definitive ANTLR Reference - Book by Terence Parr which describes all features the completely rebuilt ANTLR v3. - http://www.pragmaticprogrammer.com/titles/tpantlr/
ANTLR Studio - Eclipse plugin for ANTLR providing syntax diagrams, lexer wizard and grammar editor. Developed by Placid Systems. - http://placidsystems.com/antlrstudio.aspx
Mantra - Programming language developed by Terence Parr, ANTLR creator, to demonstrate and test ANTLR v3 features. - http://www.linguamantra.org/
AntlrEclipse - Plugin for Eclipse IDE which provides ANTLR integration. - http://antlreclipse.sourceforge.net/
ANTLR v3 Resources & Grammars - Free grammars available for ANTLR, including grammars for Java 2, HTML and IDL. - http://www.antlr.org/grammar/list
Compiler Construction with ANTLR and Java - The author discusses the experience of using ANTLR, with an introduction to the tool. (Gary L. Schaps / Dr. Dobb's Journal) - http://www.ddj.com/documents/s=905/ddj9903h/9903h.htm