An email I sent out this morning addresses the email vs weblog issue:
Please stop. You should understand that sharing is one thing, via a blog or web page for example, and that bombarding somebody with email is quite another. That I do not consider sharing.
Sharing via a place on the net is cool, because I can chose to visit that place or not. Sharing via email is not cool, because I am forced to deal with your email.
The person in question was thankfully very understanding.