http://groups.google.com/group/rec.arts.sf.starwars.misc/browse_thread/thread/2dd36523530a2e64/3e0d784105a5f7e4?hl=en&lnk=gst&q=101+uses
Some good pre-Prequel discussion on who the "Dark Jedi" would be, what their motivations for being such would be.