World of warcraft in-game leveling guide

Leveling your character can be a long slow process. You begin in your starter area and slowly make your way through the different areas, killing mobs, running quests and lots and lots of grinding.  Wouldn't it be great to know which quests to do in the most direct line so you don't have to zigzag through the zone?  How many times have you flown to the next zone only to find out you have to go back and run more quests? With a leveling guide to follow, you can avoid this. Making your leveling time less annoying and much faster.