I was noticed month ago keyword drop one of my websites from 570 to 320 keyword drop, also my concurrent websites also has keyword drop, now from first page 3 spot dropped to 4 spot. My other websites was fine.
Also am i only one, that my website google 1 page now 4 spot i earn only 3Eur per day/adsense very low earning,its very strange....... but niche is excellent, maybe adsense position really don't know.