Hi all,
I'm doing research to decide which CMS could be more suitable for a complex community-choice competitions system.
I'm looking the most popular CMS as Drupal, Joomla!, Plone, DNN, Typo3 and so on.
I know that there are a lot of modules for each CMS which can cover all my needs, but I know also that the experiences are very important, so I'm here to hear some experiences about Drupal in a context with these characteristics:
1. Multi-site Deployment (mandatory)
Host multiple web sites that use the same installation. Each site will have its own domain, permissions, languages, templates and content. It should be possible for some roles (e.g. super-admin, lead editor, organization members) to use the same login in multiple sites, or better yet, maintain a continuous login session and user profile across multiple sites.
2. Sharing documents and search (mandatory)
In a multi-site context we need to share documents and contents (blog, wiki, forum) across multiple user profiles, sites and (if it's possible) domains.
3. Chatting system
The possibility to have a chatting system among users across multiple sites.
4. Scalable for mass community use
For example, sites will not crash with 100,000 visitors and hundreds of logged-in users using the site on a daily basis day.
5. Multi-lingual