John Burkhardt : Everyone is trying to build huge server farms to allow a web service to handle connection to millions of clients. Groove Web Services is more like your virtual private server that allows you (or your applications) to participate in your Groove shared spaces. It extends your Groove spaces to other computing environments or applications for you. Of course, there is no reason that the "you" couldn't me an agent as well..
Michael Helfrich : Military-grade crypto at the app layer, riding on top of commodity, whatever-comms-are-available-to-me networks. Sounds like Groove.