WordPress Multisite is a feature that since WordPress version 3 has been included discreetly right into the install itself. It is a feature that packs a huge punch, allowing 1000s of blogs to exist virtually within one, single WordPress install. It is a great idea for large-scale sites that use multiple sub-domains, blog networks, social networks, or even internal networking for businesses or organizations. While this feature has been around for almost as long as WordPress itself, it is just …