I guess I'm the first person to be running a regular website with Groove. This is done using a little aggregator tool (my ever-expanding harness), listening to a Discussion tool - or, as many discussion tools / pinboards / outliners as you have in the space -, applying some HTML templates, and FTP'ing pages up to the server. Low-tech. The surprise is, it works quite well! Web publishing is the tip of the iceberg, though; now we have to think about stuff like deletions (...oops...), discussion threading and index.html (...er...), inter-document hyperlinks (...um...)...

Of course, it's not really a website maintenance tool, although that's the easiest way to use it (and it'll knock the socks off yer FrontPage). It's a systems integration tool. Want to publish content from Groove to [name-whatever-your-nastiest-system-here]? Automated FTP. Way to go!