WordPress is a free, open source blogging application. With WordPress, you can setup and run a blog on your own server. Started in 2003, WordPress today is the single most popular blogging software on the planet. Apart from thousands of personal blogs, this PHP script also powers many large websites and commercial portals. WordPress is regularly being developed and updated. In fact, it is now more than a simple blogging application. WordPress can be used as a CMS (Content Management System) to create virtually any type of websites.
If you were looking for a blogging software, we suggest you try WordPress first. It is easy to setup an can be run on any common hosting environment. For customization, there are thousands of free plugins and quality themes. Support is also easily available via the official WordPress site and the large community of WordPress users.