Just got my report, first of all, the pdf is designed very nicely and doesn't look like some crappy shit. Also I got around 21 clickable links from different document sharing sites and also one link in a profile page (I didn't check other profile pages so there might be more profile links from these pdf sites). I don't really know why the pdfs were uploaded to file sharing sites because I'm not quite sure if Google would crawl these files when there is a captcha or waiting process involved though.
Anyways, great service with links from some very powerful sites!