McAfee has what they call a Site Advisory that I seen, I think as a link back or something.
I actually wrote them to tell them I thought that was a good idea, of course I made sure I had the green check mark first.
Maybe it is the way of the future and would certainly help more Honest webmasters.
Here is there link in case anyone wants to check there site.
http://www.siteadvisor.com/
Ben