Tony Byrne’s CMSWatch: Featured Opinion: Open-Source CMS: Prohibitively Fractured? provides an excellent analysis of the state of open-source content management systems. Tony feels that the efforts are currently so fractured between competing projects that no one open-source CMS can compete with the commercial products. An excerpt:

I would like to see development and support resources coalesce around winning projects. Open-source CMS efforts would benefit from a selective merger of efforts, especially among packages using the same language. We could celebrate that a thousand flowers have bloomed, but let’s also acknowledge that too few of them give off a sufficiently pleasant fragrance today.