Excellent guide comparing Wordpress, Joomla, Drupal, and Plone
Idealware is providing online a report on open source content management systems by comparing Wordpress, Joomla!, Drupal, and Plone. This 60-page independent Idealware report in PDF format provides both an introduction to the topic and a very detailed comparison of the four systems. The report also includes their new directory of the consultants and firms who help nonprofit create websites and implement these Content Management Systems.