Results of a study of various popular Content Management Systems:

The 2011 Open Source CMS Market Share Report concludes that three brands — Joomla!, WordPress, and Drupal — dominate today‚Äôs market. The Report concludes that WordPress leads in brand strength and market share after a strong year.

The Report follows the market share and brand strength indicators for 20 top systems, assessing each on a wide variety of measures. The study focuses on identifying the market leaders, both in terms of rate of adoption and mindshare.

While WordPress, Joomla! and Drupal lead the survey set across a wide range of measures, the report also identifies other trends in this year’s open source CMS market.

** DotNetNuke continues to lead the .NET CMS race, though Umbraco shows strength.

** Liferay & Alfresco are neck and neck in the Java CMS race.

** Concrete5 turns in an exceptional year.

The report includes more than 30 exhibits drawn from extensive research and a survey of more then 2,500 users of content management systems.