Is anyone else noticing major changes in Google SERP's? Did your ranking suddenly drop? Does this have to do with the caffeine update? Why is Google so silent about it?
Yeh! Me too. My top site loses Alexa ranking day-by-day and i am too worried. But, traffic is still constant.
NOT according to google. The Caffeine Update is a "back end" update (just like if you update from win xp to win 7) and is mainly for speed of indexing pages (so they can index more pages in a shorter time), or so Matt Cutts has said many times. In fact he has also said many times that the update should show basically the same results to most users and they would not roll it out until they had got it right. Chances are it is due to a filter such as blog spam etc., and the faster indexing just means they can pick up the spam quicker
i'm noticing unusual behavior also and although I have a constant upward flow of incoming links, the traffic is playing downhill tricks in this period..dunno if it's caffeine
These changes are part of the Google Caffeine update, changes in backend and algorithm means change in search results, they are connected.
Google Caffeine update is rolling out but not finished yet. It is still in a process since most of website ranking still unstable and usually shaking in every couple of hours. It would be hard to give any predict. My own assumption is should not over 20 days from now on.