EN for Business

One of Excel's many sites, EN for Business was originally built in Joomla, then migrated to Drupal (well, technically, is being migrated to Drupal - was supposed to have moved by now, but got delayed due to swine flu...)

It's a complex site with a lot of content types defined, each with particular behaviours and quirks. Among other things, it makes use of custom layouts through Panels, Taxonomy Image and Taxonomy Redirect for doing some fancy looking sections, and a whole pile of caching to bring it up to speed.