For those of us who track our own websites, you may have noticed a Google update roll out on the 8th of January that’s been causing large fluctuations in the SERPs since then. This was the 6th largest update in a year according to DejanSEO, and hundreds more can’t stop talking about it over at SERoundTable and WebmasterWorld.
Personally, a site of mine was set back nearly 130 spots. It dropped from rank 5 to rank 131, and over the course of 3 weeks, I continually tested in order to understand what the update had done. After some minor changes, I successfully pushed my site back up all the way to rank 5 again.
Read more: http://www.searchenginejournal.com/learnt-beating-googles-first-update-2014/89323/