We don't collect information about our visitors (unless they send it voluntarily via our contact form). Nor do we utilize advertising such as AdSense or DoubleClick on our site.
We do use Google Analytics to anonymously track the use of our web site. We do this to get an idea how many people are visiting and what they're interested in, but we don't (and can't) correlate that information with any other data such as Facebook likes.
If you have any questions or concerns, please feel free to contact us.