Today I had a speaking engagement on combating unsolicited junkmail (spam). It was one of my first opportunities to speak about this topic to a public audience, and I was glad for the chance to share all of the knowledge I've accumulated about what is increasingly the bane of the Internet. A lot of people seem to be content to hit the delete key as they sort through their e-mail, but I think many are realizing that this approach doesn't "scale" well -- insert here numerous statistics about how much it costs and will cost in lost productivity, abused resources, deaths of baby seals, etc. The participants in my seminar were thirsty for details about the phenomenon and how to make it go away. I think the complexity of the issue can be surprising to some, so end-user education is one of the best things one can do to address the problem.
Any way you look at it, spam sucks, and it's not going away. As it becomes more of a problem, folks will look for better solutions, and I'm glad that I'm involved in that effort.