WordPress

iBlog Therefore, I am...

WordPress is an open source Content Management System often used as a
blog publishing application powered by PHP and MySQL. It has many features
including a plug-in architecture and an easy to use management system.
Used by over 2% of the 10,000 biggest websites, WordPress is the most
popular blog software in use today.

WordPress also features:

• Integrated link management
• A search engine-friendly, clean permalink structure
• The ability to assign nested, multiple categories to articles
• Support for tagging of posts and articles

In 2009 WordPress won the best Open Source CMS Award