The third expansion of World Of Warcraft – Cataclysm – is now live and thousands of players are discovering all the new shiny content. But in order to be able to use the Dungeon Finder to queue for the new 5-man instances, you need to find them in-world first. Wowhead have created a video to guide you to the portals to Blackrock Caverns, Throne Of Tides, The Stonecore, Vortex Pinnacle, Lost City of Tol’Vir, Halls of Origination and Grim Batol…