Hi everybody,
It's our first time we develop a CMS. We have been studying the different possibilities: DRUPAL, Joomla, PLONE ... We have seen that the most popular and sophisticated are PLONE and DRUPAL. From a technical point of view, my choice is more oriented to DRUPAL (PHP, PostgreSQL, Apache). All these technologies are very stable and well developed by thousands of IT technicians. Very nice sites have been developed on DRUPAL and PHP-PostgreSQL-Apache profiles are very easy to find.
On the other side, we have PLONE, very nice CMS: nice modules, nice look, ... but I had the impression, after speaking with some PLONE developers, that once you decide to develop or “touch” your own modules ... headaches start if you are not an experienced PLONE developer (those profiles are very difficult to find (ZOPE, Python, …), at least this is the case in Europe). However, I have seen and consulted several PLONE sites (CIA, EEA, …). Really impressive! I have seen that users (authorized, for sure) can very easily modify the thematic content of the pages, adding pages, files, …
So … we are just in that critical dilemma: PLONE? DRUPAL?.