I forgot some links. These pages cover the topic fairly well and otherwise correspond to my own experiences.
http://members.tripod.com/%7EAleister_Crowley/GHB.index.html
http://www.lycaeum.org/drugs/synthetics/ghb/ghbfaq.html http://www.lycaeum.org/drugs/synthetics/ghb/bimodal.html http://www.lycaeum.org/drugs/synthetics/ghb/gamma-oh.html