What's so good about it? It's a pretty standard out-of-the-box Joomla CMS site as are many of the Ceroc sites.
What makes a good site? Three things in my view - content, content and content, it's useful content that makes you go back again and again. A good one that springs to mind is Ceroc Central, all kinds of useful stuff on there, that's also a Joomla implementation.
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