I don't have a Facebook account and I'm not on Google+, so I can't really evaluate the tool from a personal perspective. But I find it weird, that I get some re

I don't have a Facebook account and I'm not on Google+, so I can't really evaluate the tool from a personal perspective. But I find it weird, that I get some recommendations if I click the "recommend" button without entering any URL at all or complete garbage. You could add some form of input validation to see if users entered a valid Facebook URL. If a user enters his Facebook URL in a wrong way, he will get some results, but these recommendations are not based on his profile.