I just ran my site thought McDar's keyword tool. I was suprised to see that most of the sites in the top 10 do not even have better results than me. For instance about 4 of those top 10 sites have less backlinks than me in Google, have the same PR as me and even rank lower for allinanchor than me, yet I'm nowhere to be found even within 1000 results, if that is not proof that there is a sandbox, than I don't know what is