kanetrain - 11:29 pm on Jul 30, 2013 (gmt 0)
Also very old site. High authority. Thriving community. Lots of backlinks. Exact match domain.
We got his with the unholy trinity of updates lately...
UGC hit - since we have a community with forums and other resources.
Exact Match Domain hit - Exact as they come. Hit hard on some search terms.
Amazon and big box pushed to top of serps - Serp de Jour is big box with amazon being the major beneficiary.
Again, this has been ongoing for quite some time.