Micosoft has a version of the Honey Pot - HONEY MONKEY

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Fascinating Strategy for finding Malicious URLs :hotbounce


http://research.microsoft.com/HoneyMonkey/

http://research.microsoft.com/research/pubs/view.aspx?type=Technical Report&id=926

http://www.techworld.com/security/news/index.cfm?newsid=4192

http://honeynet.pop2internet.com/