Joana's Horde Leveling Guide - The Best Horde WoW Leveling Guide
The creator of Joana's Horde Leveling guide goes by the name of Paul. He usually plays a female character named Joana or a male character named Mancow. Paul is a gamer who specializes in getting to the maximum level of a game in the shortest amount of time played. He has been first to level 60 in world of warcraft on at least 5 servers (before burning crusade came out) and has been first to 70-80 on a few servers (when BC and WOLK came out). While WOLK was in beta Paul manage to get 4 characters to level 80 including the new Death Knight class.
Paul made Joana's Horde Leveling guide to provide people with the fastest possible way to get to level 80 (as of WOLK). At first he provided people with a 1-12 starting area guide then moved into a 12-60 leveling guide and now he has made a 60-70 Outland guide and 70-80 Northrend guide.
The best thing about this guide is that it has an in-game leveling mod sort of like the Questhelper add-on. Everyone thinks that Questhelper is the best add-on for leveling until they meet this in-game leveling mod. This mod has the exact same steps as the PDF file version of the guide and has an arrow pointing you to each quest, NPC, and any other location/waypoint you are in the game. Another great thing about this mod is that when you log out it automatically brings up where you left off.
Joana's guide also has class guides and specs for leveling.