I think that my favorite Cataclysm announcement to come from Blizzcon was the introduction of Guild Leveling.  When it was first announced it as a function, without going into any detail, I will admit to being trepedatious of the feature.  I thought “oh god, I hate leveling in groups, this is going to be awful”.  However, as I followed it through to the game systems panel, I found myself more and more excited about what it is actually going to work.  In fact, I was so excited about it, that I’m fairly certain that I bored a good number of my party at Blizzcon talking about it.

Let’s take a look at the nuts and bolts of guild leveling, and then what I think it will do for the game.