For the passed 2 months, my site was landing on page 1 for my targeted keywords, and page 2, for many others. I first built 5-10 pr 6-8 links then 25-40 pr 4-8 links then 100-200 pr 2-8 links Also senuked many articles/blogs/forums over the course of a couple of months. I had extremely high SERP, up until early this week (2/2/12), When i now notice that my site is not even in the top 400 results for ANY of my keywords. Did Google panda roll out some brand new changes? I read that they may have implemented a more "dynamic" and "interactive" algorithm. I also read that Google was now taking "adds above the fold" as a serious offense. Can anybody shed some light on to this issue? Am i sand boxed? Are my competitors that fast to down me? ETC. Any help would be most appreciated.