I last logged into it 45 seconds ago, so it definitely works.
At the risk of using the tech guy's boilerplate question that's always taken as an insult (did you turn it off, then turn it back on again?), have you all tried clearing the cache out of your respective browsers? Cache files can get corrupted. If you keep trying to load a page that the browser has already cached as unavailable, the browser may keep reloading the "NO!" page from its cache, instead of going to the server and loading the data that's there. Check the Preferences menu item in your browser; the "clear cache" option is usually placed there.
You might also try a different browser, which may not have a screwed-up cache for iBOB.
If you're logged into Google Groups through a browser, there should be a sidebar on the left. Try clicking "My groups", and "internet-bob" should be in your group list if you're a subscriber. Click on that link instead, and see if you get different results.
Peter Adler
Berkeley, CA/USA