Track IP addresses? It's tricky, you would need to capture it the IP first then you could use ARIN to see who owns it - most likely an ISP or internet business. Unfortunately you would not be able to tell who used the IP without a good reason for the owner/admin of the IP range.
Hm, alright. I was just curious about may be being able to get a general location as to where the address is coming from. I am one of those people with a tracker on my page =) and I saw some interesting activity yesterday. The tracker gives the IP address but I'm skeptical of the locations because it doesn't even have my location right.
You're right to be skeptical. I manage 2 Class B ranges and I would set this IPs in multiple cities - NYC, NJ, Stamford, Philly, Chicago, London and if you found my IP, it would be registered here in NYC.
You could try http://www.geobytes.com/IpLocator.htm?G
It has an easy user interface to give you an idea who the person's local ISP is.