If you haven't already seen, Spokeo.com is a website that appeared a short while back which pools any and all information about you it can find off of the internet. Sometimes, the information is thankfully wrong, but other times it's quite accurate.
If you find your profile on there, and want to be removed – copy the URL of your page and then navigate to the "Privacy" tab in the footer. Follow the instructions, providing the URL for your information, and get yourself removed. Having your information spread out amongst hundreds of websites is one thing; having everything available on one site is another.