You are all correct, IP's are not a good way to track individuals. How many people have a "cable modem" that provides Internet access to multiple computers? Each computer will appear to have the same ip (that of the router/Cable Modem). Unfortunately, i am not aware of a good solution. Was it Intel that wanted to put a unique serial number on their CPU's just for this reason? There was such an outcry and threats to boycott, that they changed their mind. It seems people LIKE their anonymity while browsing.