Let me first say that I DO NOT CONDONE THIS. I wanted to share this with the community to be on the lookout for this in case it happens to you. I rely pretty heavily on Google Analytics for my website. I know where all my traffic is coming from, where to improve, and also what keywords are working. That was all until a competitor of mine decided to take my tracking code that is on display in my source code and install it on every single one of his sites- and he has a ton of sites that are not related to this niche. Literally overnight, my analytics reports were a mess and were virtually unreadable. Traffic was pouring in from all kinds of whacked out sites and my keyword summaries where ridiculous. Fortunately I had a hunch who did it and was able to send a nice little letter from my lawyer. I have no idea what I would have done if I didn't know where to send the letter to. Does anyone know what to do in that situation? Be on the lookout, it was a huge pain!