Hi Jeff, thanks for your input. It is greatly appreciated.
We do have a Twitter Out[/url] and Twitter In (stream)[/url] feature that works in a similar fashion as the Email Out and Email In. We have considered integrating to Facebook as well and I agree that it can be a very useful addition.
I'm not sure if I understand your Exchange remark. What do you mean by " on-demand request"?
Cheers,
/Michael