In Pictures: Can your IP address give away your id...
Can hackers, stalkers, criminals, and other Internet users track you down by your Internet Protocol (IP) address? According to the courts, several analysts, and IT professionals, the answer is both yes and no. An IP address by itself can identify a specific access device, but not who’s using it or exactly where you are. However, by combining IP address with other types of information, it is possible to get pretty specific. For example, it’s possible to narrow down IP addresses to a general geographic area.
In Pictures: Can your IP address give away your identity?