2bit Tutorials
CG Textures - Free Textures
Chruker's ET Mapping reference
Erik-Ftn's W:ET docs
Marko's Mapping database
the free sound project - sounds resource
Pazur Mapping - Map sources / Models / Tools
Q3 Shader Manual
S&M Mapping - Map sources / Models
SLUT Mapping - Prefabs
Shader blendFunc Explanation
ETjump topic with more links