A lot of the Troll stuff I got from the WoW wiki, but I'm now working on the troll kingdoms in the article: Way of the Troll. I'm only outlining the lore now. I won't be able to expand on the lore of the trolls until the outline is finished. But if you are waiting to play a troll, this page will eventually tell you all you need to know to roleplay a troll. This includes the three tribes trolls can come from.