When Blizzard first announced that it was working on a massively multiplayer online game (MMO), the first thought that ran through my mind was "Why? Blizzard has no experience in this area. What can they bring that's going to be fresh, new, or different?" It's not until I began seriously playing the final version of World of Warcraft, though, that I realized just how foolish a question that was. Blizzard's particular genius has never been in breaking new ground; it's watching the mistakes other people make and learning from them. Blizzard games have the cache they do because they're polished and refined until they gleam.