I recenlty received a lot of strange messages form someone I used to know. No idea how this person knew where I was. In fact it's an ex of mine, so it's a little disturbing. I found a website which helped me find out if this person has really been stalking me. The website "Stalk Info" is about cyberstalking and all kinds of Internet stalking. It gives you a location from which your name has been googled. Pretty awesome. I found out that this ex of mine must have been stalking me, because my name was googled 3 times from his town!
* update - they also posted an article about Cyberstalking Law, now I know exactly what to do ;)