I believe that this is the foremost question that most new visitors to this site are asking and I don't think it's answered presently. The site comes across as too technical for many potential users. I'm not saying that the current technically oriented content needs to be changed, just a few key sections added that are written in clear non-technical language:
- Why CMS Made Simple: A focus on the unique values . . . what does CMSMS do better than anyone else.
- Benefits need to be explained with the features e.g. http://www.cmsmadesimple.org/features
- CMSMS vs Wordpress I suspect that this is the most common alternative that new visitors are considering