All through for 4 months it was at 1st spot, and then suddenly started dropping and now is on 4th-5th spot. Possible reasons:- 1. Used one of the PBNs to link to my other site. (Removed those links today) 2. Havent updated it in a long time. 3. New update caused keyword density to shuffle. Apart from the main money pages, other keywords of supporting articles dropped massively all the way to 3rd 4th page. Any suggestions?