erowid.org. Plenty of info and links.
I think it's a good idea keeping them seperate. If big brother gets a hair up his ass and starts going after websites that talk about smoking crack, then let them take the crackhead site down instead of our current forum. We have a topic with plethora of social, cultural and historical significances. Plenty of stuff to discuss without people asking where to get ingredients to make meth (which would certainly happen at some point).