I know this ranking will come back but I am curious why Google have to evaluate site every time I got listed on major directories (skaffe/goguides/joeant/etc.) or major site (same niche with 8 years old site). Their evaluate make my site ranking dropped for a few spots (sometime many spots) and its dropped in all search operators (allintitle, allinanchor, allintext, quote (" ") ) and that make me feel bad.
Google is constantly adding and dropping pages from its index. Dont worrry about it. Just add more content to your site.