Basically a gathering together of ideas on how to make a map scary to the player.
How to use Pakrat
A mini tutorial on how to record in game action to produce a movie that will run in most media programmes.
A tutorial on how to change the format of the menu. Be advised that this is not a tutorial one how to create graphics or art, but simply how to alter the menu format for your mod.
How to Install Maps
Make a simple mini mod without coding
This is basically a document that highlights all of the important changes from HL1 to HL2 mapping.
Demystify the Source SDK with this handy guide.
Player Size Information. (Danial at Chatbear did some tests and put this together)