WordPress
Manufacturer: Open-source community
Version: 2.1
License: GPL
Size, MB: 5
 
Web site: http://wordpress.org
Support site: http://wordpress.org/support
Documentation: http://codex.wordpress.org/Main_Page
   
WordPress is a state-of-the-art semantic personal publishing platform with a focus on aesthetics, web standards, and usability. What a mouthful. WordPress is both free and priceless at the same time.