Hey Brian,
Here's a couple of links. Hope they're what you had in mind. I'm sure there are others here who could make it a longer list.
--Paukki
http://www.monroeinstitute.org/
http://www.neuroacoustic.com/main.htm
does anybody know of any sites that explain weird sound frequencies better? the ones that induce obe's and trances and the like? ive been curious about it but im having a hard time finding information on it as i dont know exactly what these kinds of frequencies are called, so i dont know what to look for.. if anyone can help, id really appreciate it.
brian