In the lead up to the 2010 Open Source CMS Market Share Report, water&stone surveyed a group of users of various open source content management systems. In the survey, we asked users to evaluate the most popular open source content management systems and to share the criteria they used in the selection process. During November and December of 2010, over 5,000 people participated in the survey. Of that group, 3,365 answered the question: “When selecting a CMS, how important are the following features?” In this article, we share the insights gained from that question.