In addition to the freedom that WordPress offers to its users, it also offers a great deal of flexibility to its administrators and managers. One of the greatest features of WordPress is the ability to set up a multisite environment that allows you to stand up an entirely new website in a matter of minutes. WordPress Multisite offers you the option to set up new websites using subdomains or subdirectories off of the original installation point. However, through various plugins and configuration settings, you can take it even further than that.
A video of this presentation has been uploaded to WordPress.tv at http://wordpress.tv/2013/02/13/curtiss-grymala-wordpress-multisite-and-beyond/