extremely interesting site with tutorials/how to

[drack]

http://planetquake.com/qworkshop3/tutorials/

 

I dont know if it's been posted before but this has tons of information with radiant.

mirror, traps, arched doorway, texture, curved surface, teleporters, water, fog.

theres probably info good for quake 3 only(like entities) but im pretty sure 90% of whats in there applies to JKradiant.