Of the Big 3, WordPress is the clear market leader. As you can see in the chart below, the WordPress brand dominated search query volume on Google over the last 12 months. Exhibit 22 - 12 month Trend - Big 3 Search Query Levels
Exhibit 22: Notes on Interpretation •
Trending: WordPress interest increasing.
•
Trending: Joomla! interest decreasing (slightly), continuing a consistent downwards trend that began in early 2009 (see, Exhibit 21, above).
•
Drupal down slightly, but essentially flat year-on-year.
The chart below shows the traffic to the primary project sites of the Big 3 over the last 24 months. wordpress.org clearly outstrips both joomla.org and drupal.org.
Exhibit 23 - Big 3 Daily Traffic
2011 Open Source CMS Market Share Report | 7