Demonology Warlock Guide (3.3.x)
*This guide was not created by me* Short post, but this video really helped me understand how to spec and play a Demonology Warlock in 3.3.x. Optec (original post here) put this together in December 2009, but the fundamentals still apply. Watch and learn, all you misguided Warlocks. Demonology leads the way. The core build is Meta/Ruin.