As your blog grows and you see the benefits it brings to your business, you or your colleagues may decide to set up other blogs. You may want each member of your team, or each department in your company, to have their own blog. Or maybe your CEO is so impressed that he or she wants his or her own blog, too. You could run each of these blogs with their own individual installations of WordPress. However, WordPress has built-in functionality that allows you to run multiple blogs from a single installation. It's called WordPress Multisite.
WordPress Multisite allows an unlimited number of blogs to run off one installation. All the blogs on such a network operate completely independently of each other. Each can use different themes and settings. The administrator decides which plugins to install, and...