Good Gear Guide
In Pictures: Can your IP address give away your id...
If the site has no contact page, email address, or phone number (like many of the scam sites), you can locate the contact information through the WHOIS function (unless the site has the Who Is service blocked, which is not free). Just type Who Is in the search box of your favorite browser and select one of the Who Is services. The service prompts for the website name (some allow you to enter just an IP address, making the previous step from slide 5 unnecessary) and a long stream of data appears:
In Pictures: Can your IP address give away your identity?