WordPress is the most pervasive and fastest growing open source CMS. Many non-profits, charities and educational institutions use WordPress to power their websites. However, finding a way to connect a Constituent Resource Manager (CRM) has been difficult. You could add a few plugins and build out these features, but then the data would have to be exported into another database to be able to query data. Often proprietary software is used to accomplish this which is very expensive and you give away control of your data. As of January 2012 CiviCRM, an open source software geared toward meeting the needs of non-profit and other civic-sector organizations can now be used with WordPress. CiviCRM provides a robust feature set, which includes contact management, fundraising, event management, member management, mass e-mail marketing, peer-to-peer campaigns, case management, and much more. This integration makes your website more powerful combining a CMS + CRM.