Those guys over at Icy Veins are trying really hard to combine the information for every class into one place, but it seems a little rushed and obviously won't ever be as good as a resource dedicated to one class - for obvious reasons.
A lot of the information on the Icy Veins threads - particularly the warlock ones - are incorrect. The stat weights, the priority system - completely neglects optimal use of your resources. They still think that the Doom Guard snapshots your stats rather than updating dynamically - I could go on.
I imagine its quite difficult to release guides for every spec in the game all in one night, and I have a lot of respect for those guys, but just take it with a pinch of salt.