I've been meaning to start a blog and post this for awhile now, so here we go with my first post on optimizing your raid dps. This is really my first expansion where I've gone more in depth on getting my characters to do the most damage they can in runs. I'm not currently raiding, but least I know I will for the most part be ready if my guild does finally get going, but this information should be good for anyone.
One good place to start that I know of is to go look up your class and spec in the
ElitiestJerks forums and look at the information they have on the class and spec that you want to play.
The first things I'd do before getting to in-depth is look at what glyphs, talent builds, gems, and rotation in the post that they will have on your class. Later you will want to get into reforging your gear to maximize your dps or really anything, but I'll be covering that part in the next post I make on this topic.