you could try a google search for the domain, and see if it comes up as a link on any sites - you might be able to tell on the site it links from where the most obvious traffic would originate. otherwise, if you have a hosting account somewhere and add the name, they can usually give you stats on where the hits originate from. you probably don't have your own servers, and neither do I, as that would be the most obvious way to tell. maybe someone here can help.