In commenting on a New York Times article on the subject, Steve Outing (at Poynter) speaks promisingly of a “new” spam-fighting trend of filtering in good content and trashing the rest (as opposed to the traditional scan-for-bad appoach). You know, I’ve been doing this with Mailwasher for nearly a year now. Set up a filter to delete everything. Scan the list (while it’s still on the server!) and drag the good stuff to your friends list. Then download. The process takes a minute and works flawlessly.