Hourences, the mastermind behind DM-Rankin and DM-Rajigar, has released two new tutorials for UT2003/4 mapping, About Terrains and About Texturing.
The tutorials are viewable over at his site.The tutorials are mainly about what to do to make your terrain look good and how to get decent texturing in your maps.
The tutorials are not about HOW to make it, for that there are plenty of other tutorials out there, but on WHY you do something. How to make it feel and look good. Explaining the theory and idea behind something.
They are primarily focused on UT200X but the theories behind it are universal and can be used for almost any game out there.