Modification Resources - Collection of Walkthroughs, Tutorials, Modding tools and open source modules, skins, scripts, etc. for both beginning and advanced Modders.
All tutorials about skinning, modeling, and animations for units, editing building models, and all 2d graphical editing.
All tutorials about text editing and scripting aspects of modding.
All tutorials on all aspects of mapping, how to create add cities and resources, which files need editing and graphical edits.
All tutorials on sound & other media here, from music, voices to fx to in game movies, ect.
All tutorials which do not fall into the other categories, or which cross categories.