In the late nineties, I was spending a lot of time at an interesting place called "moo". It's one of the key prior-generation groupware architectures, and influenced my thinking just about as much as Notes did.

I still have an account there (although I'm not engaged in it anymore):
   @age me
   ing first connected on Thu May 22 01:20:49 1997 PDT
   Which makes him 7 years, 9 months, and 18 days old.
   However, for official purposes his age is 7 years and 9 months.

LambdaMoo evolved into Microsoft Office Live Meeting (odd though it may sound).

What will become of Groove now? Good things, I think. After all, the only competitive architecture within a couple of decades is Alan Kay's mallet...