http://web-profile.com.ua/wordpress/
CMS usage statistics (CMS usage stats by builtwith.com): WordPress is used on the 16% of the top 1 million web-sites. WordPress CMS market share: 54%. 22% of new sites uses WordPress.
Links:
- WordPress roadmap
- WordPress version stats (PHP and MySQL version stats)
- Number of sites build with WordPress
Users uses WordPress (by the result of surveys in 2011):
- as just a CMS – 61%
- as blog & CMS – 31%
- as just a blog – 8%