World of Warcraft: The Guilded Age
Of course, you could just solo too.
In World of Warcraft: The Guilded Age, Nick Breckon of Shacknews takes and in-depth look at the disadvantages, advantages, and issues with guilds in WoW. It also happens to be a good introductory article if you have no idea what a guild is.
It's hard to treat World of Warcraft like any other game. With nine million players worldwide and growing, it's a phenomenon. The average server, or instance of the game, has a population of thousands online at any one time. With so many people packed into the same world, cooperation offers a clear advantage to those who seek virtual success.
Keep reading the feature at Shacknews.