Exemplar CMS designs?

I spoke with Steve Dembo of Teach42 today about the relative merits of open-source content and course management systems like Moodle and Drupal. A team at the Discovery Educator Network is working on creating a new website portal for educators related to some international trips educators will take and students can virtually follow, related to the Discovery Channel, Travel Channel, etc.

When it comes to customized website designs using open-source content management systems and course management systems (including but not limited to Drupal and Moodle), what are some of the best ones you have seen? Do you have a recommendation for a particular CMS based on the purpose described above for the Discovery Educator Network?

On this day..

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