Get weekly release at http://wix.sourceforge.net/releases/
http://robmensching.com/blog/ - WiX Toolset Project Lead
http://blogs.msdn.com/pmarcu/ - WiX Developer
http://blogs.msdn.com/jasongin/ - Creator of Deployment Tools Foundation (DTF)
http://n2.nabble.com/Windows-Installer-XML-(WiX)-toolset-f687559.html - WiX Forum
CANDLE - Compiler
DARK - Decompiler
HEAT - Harvester
LIGHT - Linker
PYRO - Patch Builder
TORCH - Transform Builder
MAKESFXCA - Create a managed custom action
CT - ?
CTUI - Click Through UI
LIT - Compiler
MELT - MSM melter
SETUP - ?Template for SETUPBLD?
SETUPBLD - bootstrap builder embeds multiple MSI?
SMOKE - Validator
WIXCOP - Rules Checker
MSIDB - Table Creator
MSIMSP - Patch generation tool
MSITRAN - Database transform tool
MSIZAP - Data Zapper
MSICERT - DigitalSignature table update
MSIFILER - Table Creator
MSIINFO - SummaryInformation Display and Update
MSIMERG - Merge tool
MSISTUFF - Configuration utility for Internet Download Bootstrapper
Bootstrap Manifest Generator (BMG) - Aids in working with the Generic Component Bootstrapper in Visual Studio .NET 2008