Making Facial Animations
This page explains how to export your facial animations into Source. Facial animations are done using a different procedure than most animations in Source.
WWMT Changelog
Wall Worm tools changelog. Includes information and release date on each update to Wall Worm.
Export Multiple Texture Skins
You can give your model multiple skins (textures) so that the same mesh can look differently in different uses.
Attachments & Particle System UI
Attachments are points on your model where you can attach extra models and particle systems (guns, sprites, etc). This page details both Attachments and Particle Systems since the Particle System controls are also in the attachment rollout.
My Model Scale is Wrong
All you need to know about getting your model scale correct.
Many new 3ds Max users have problems with the scale of their exported models not matching the scale in the Max UI. Here are some tips on solving that.