One of the quietly celebrated features in contemporary Cataclysm is the ability to level up entirely using the Dungeon Finder. It's a little rough in a few places where you cross expansions, around levels 58, 68, and 80ish. But other than those few spots, you can fly through the so-called younger levels without much trouble at all.
While speeding your way to level 85 this way doesn't require a lot of strategy per se, it still helps immensely if you get your act together beforehand. Consider issues like leveling professions, keeping up with gold, and even how you'll handle your downtime between queues. Most importantly, once you're actually inside the dungeon, you should be prepared with some tips to avoid annoying the heck out of your groups.
Filed under: WoW Rookie