Terapad is blogging on steroids, an incredibly impressive hosted application that starts with blogging but also includes content management, job boards, image galleries, event calendars, forums, integration with third party services (PayPal, Google Analytics, Flickr, and more), complete CSS based customization, and much more. It's also really inexpensive - free with embedded ads, or $5/month ad-free. And best of all, the entire system is powered by ColdFusion and JRun.
Andy: you remember CFVault.com, I'm impressed! Those were the days weren't they? :-D
Chuck: our framework is all homemade, very influenced by Steve Nelson's Fusebox 3 though. We're old school like that ;-)