WordPress is a powerful semantic publishing platform, and it comes with a great set of features designed to make your experience as a publisher on the Internet as easy, pleasant, and appealing as possible. We are proud to offer you a freely distributed, standards-compliant, fast, light, and free content management system, with sensible default settings and features, and an extremely customizable core.
The following is a list of some of the features that come standard with WordPress, however there are literally tens of thousands of plugins that extend what WordPress does, so the actual functionality is nearly limitless. You are also free to do whatever you like with the WordPress code, extend it or modify in any way or use it for commercial projects without any licensing fees. That is the beauty of free software, free meaning not only price but also the freedom to have complete control over it.
WordPress can be extended to MultiSite feature on demand base. You are able to develop and maintain multiple sites using single WordPress installation. Multisite is a feature of WordPress 3.0 and later versions that allows multiple virtual sites to share a single WordPress installation. When the multisite feature is activated, the original WordPress site can be converted to support a network of sites.