Ok so this last update really puzzled me. It was the EMD update and panda/penguin refresh. My niche results went from OK to terrible and still are terrible. Basically first page includes multiple MNS sites that are 1 page emds (for multiple keywords), a few sites with sub 5 backlinks, some sites with no anchor diversity just KEYWORD over and over. Aren't these the exact features google was "banishing"? My site did get slapped like 10 positions yet I had lots of quality back links, anchor diversity, PR 4, rich content 100+ pages, good on site seo. Now I see these 1 page EMD etc out ranking me, or sites with 0 seo and not updated in years. It makes me wonder why I put so much effort in my site getting it to #1 and making it an authority for most of my keywords to get slapped in a update and be out ranked by sites that took 30 mins max to create with virtually 0 SEO.