One legislative, the other technological:
Massachussets Attorney General Tom Reilly, assisted by Microsoft has successfully shut down one of the world's largest "spam gangs."
Vwani Roychowdhury of the University of California, Los Angeles, together with Oscar Boykin of the University of Florida and other colleagues are working on anti-spam programs similar to police databases on criminals. Essentially they are designing a trusted social network as a kind of extended spam filter.
Pro-Active Policing
