Hi. I have come across some terms which I still don't quite understand. When I want to check the PR of some page I just go to an online PR checker like, say, prchecker dot info, and check it. But I read people speak about page with fake PR, dropped domains, and other terms ... in the context of "PR fraud".. If somebody could explain in more details different mechanisms and ways to make a PR fraud, and more importantly: What is the most effective way to recognize it and prevent myself from being scammed? Thanks