I have been using referrer.org for both my websites. Megaupload Movies, Streaming Movies & Shows, it is a pretty cool tool to use, what it does is that websites that are referring to your website will appeared wherever you insert their code, you can change how many links appear like 5, or 10 etc...check them out. I also use http://popuri.us/ to check PR, Alexa Rank, and Technorati linkbacs. Hope someone will find these websites useful.