University of Colorado police have posted online pictures of 150 people (Internet Archive page) smoking pot on the “420” day celebration and are offering a $50 reward for anyone who can identify them. An interesting plea for peer-based surveillance and identification.
It isn’t hard to imagine this surveillance extending into other parts of the web, such as monitoring LiveJournal or MySpace accounts of people in attendance. Clearly, the personal information users are encouraged to voluntarily post on such sites are of benefit to more than just marketers.
UPDATE: Read Dan Solove’s thoughts here. And you can participate in more surveillance Web 2.0-based enjoyment of the event at YouTube.