do a search for dog health on google and the amount of junk that you will find within the first ten pages is unbelievable. Sites with cloaked pages, sites with limited back links, and sites made for adsense are all ranking high. Maybe I'm just jealous as my site http://www.dogflu.ca which was number 3, right behind an authority site's two listings up until mid November, has simply fallen off the map... Google oh how art frustrate me!
I just check few in first page, all seems ok, isn't it? You site seems got some penalty and went down. Anything you did last two months might cause.
would it be worth my while emailing google to ask if my site has incurred a penalty of some kind, and if so, would anybody know who I would email?