It's time once again to take a look at the adoption rates and brand strength metrics for the most prominent open source content management systems. In July water&stone will be releasing the 2009 Open Source CMS Market Share Report. In the course of preparing that report, I will be posting various metrics and indicators that might be of interest (and stimulate some discussion).
If you remember the conclusions of the 2008 report, the top three systems were WordPress, Joomla and Drupal. One of the key issues we'll be looking at this year as how the race for market share, and mind share, has shaped up between those three strong brands. I was looking today at Forum activity as an indicator of buzz and mindshare. Here's a neat little dynamic chart from Omgili that shows the activity levels for the top three brands across the last 30 days.
Looking at this chart in isolation it seems that Drupal is the clear laggard among the three brands. What is significantly less clear, however, is how much of the chatter about WordPress relates to the Online service (wordpress.com) versus the open source CMS (wordpress.org). This latter question was a persistent problem in the 2008 report metrics and I expect it will be back to haunt us this year...
Thoughts?
