Forum thread about using Plone vs using Drupal Plone is the user layer on top of Zope and the CMF that offers an incredible amount of functionality out-of-the-box that you just won't find anywhere else. Now while Drupal has a very small learning curve relative to Zope and Plone, Drupal is not as easily able to handle the big stuff. I find Drupal's configuration, layout, content editing, and style to be far more comfortable than Plone's.