Heres one for you. My traffic was off over 50%. I worked and managed to make it to the top of page 2 (lived at the top of page 1 for years). I increased Adwords because now is the busy time and I need to be on page 1. Guess what, after a week of hefty Adwords I can't even locate the homepage in the search results. I have increases in Bing in Yahoo and only paid traffic from G. Personally I think its time for lawyers.