Revi has a really awesome group about World Building with tons of sweet resources for creating countries, worlds, and even complete universes. When we create a roleplay plot, we're often creating a "universe" that these characters and stories exist in. Even if it takes place in our modern earth, it still develops it's own reality of information! I know I have SEVERAL "Universes" where storylines exist. Some complete with entire worlds, countries down to the little details. XD What kind of universes have YOU created? How many do you have?