Martin_Ice_Web - 9:54 am on Nov 29, 2012 (gmt 0)

I have to agree with Sechecker, this on/off periods lasts till 7 month, right after peguin was released.
We saw on/periods prior to panda/peguin but only when an updated was going on and it lasted a day. But this on/off periods are definitive made by googles quality money making updates.