Is SERP update going on ?

SERP updating is not a process like PR update. It updates regularly.

 

yes.. same for me.. traffic from Google was way down since mid last week.

 

Serp changes many times every day. If you find your serp ranking drop a lot, try to check back in a couple days. Most of the time it will come back.

 

yes, I also experienced the same thing since the last two weeks, I became a keyword in hundreds of pages, whether it will last a long time for autoblog?

 

There quite a bit more serp changes than usual in last couple of weeks..

 

Same here. I have lost around 400-500 visits for one of my site. Traffic is down for two of my sites.

 

I agree. SERP is always updating and its a continous process.