Lua Programming Language:Home site; lightweight, made to extend programs, often used for general-purpose, standalone use; simple procedural syntax, powerful data description constructs use associative arrays, extensible semantics; dynamically typed, bytecode interpreted, garbage collected; great for configuration, scripting, rapid prototyping. [Open Source]
CGILua: A tool that uses Lua as a server-side scripting language for creating dynamic Web pages. Both pure Lua scripts and HTML templates are supported and can be handled via CGI, FastCGI, mod_lua, ISAPI and other APIs.
CPB: A LUA to C binding library. [Open source, Free]
Doris: A Lua binding to the OpenGL graphics API and GLUI OpenGL widget set. [Open source, GPL]
Kepler Project: A Web development platform for Lua with open source and binary distributions. It includes CGILua, LuaSQL and other libraries.
Ldb: A debugger for Lua. [Free for pure academic, non profit use]
Lua Cheia: A Lua distribution with incorporated many useful libraries. Libraries can be loaded dynamically, or it can be built in into the interpreter.
Lua FAQ: Frequently Asked Questions about Lua
Lua Reference Manual: Reference Manual of the Lua programming language
Lua-an extensible extension language: An overview of Lua.
Lua-users.org: Lua-users Wiki, collaborative site for Lua programmers; Lua-l archive, searchable body of official Lua mailing list; Lua-users.org mini charter.
Lua.NET: Project integrates Lua with the Common Language Infrastructure, a framework for language interoperability.
LuaForge: GForge installation for the Lua language community. A free repository for Lua projects management, categorization, issue tracking, and statistics.
LuaJava: A scripting tool for Java. It allows scripts written in Lua to manipulate components developed in Java without any need for declarations or any kind of preprocessing.
LuaSocket: A Lua extension library that provides support for the TCP and UDP transport layers within the Lua language.
Plua: A port of Lua 4.0 (plus a small IDE) for PalmOS handheld devices.
PowerBLua: A PowerBasic wrapper for calling Lua functions.
Programming in Lua (the official book): By Roberto Ierusalimschy; 2003. It is the official book about the language, giving a solid base for any programmer who wants to use Lua.
TkLua: A binding Tk to Lua. [Freeware]
toLua: Tool to simplify integrating C/C++ code with Lua, automatically generates binding code to access C/C++ features from Lua; maps C/C++ constants, external variables, functions, classes, and methods to Lua, via Lua API and tag method facilities. [Freeware]