The rhetoric around spam and “finding a solution” to the spam problem is reaching fever pitch. One of the best discussions of the issue I’ve seen is being conducted by the Technology Review.
They started their coverage with an excellent overview of the issue called “Spam Wars”
This was followed by a Dialog between Vipul Ved Prakash (Cloudmark founder), David Crocker and Barry Shein.
I was going to quote from Vipul and David, but they make so many solid points and argue the case for restraint in dealing with spam so eloquently that I will just urge you to follow the links.