Not fully awake yet
Google switched to a frenetic new search algorithm named Caffeine on Tuesday. Search Engine Land contrasted the new vs old Google, with the biggest difference being the speed with which new content will find its way to search results. PC World provided an interesting history of the project, dating back to Google's overload performance of Sept 11, 2001.
The overall consensus is that the changes are not intended to have a significant impact on search listings. The blog Ask Enquiro looked at the expected changes on Google SEO and Econsultancy looked into the future for changes that might occur based on Caffeine's increased collection of metadata. While it seems that Caffeine was introduced to reduce the latency in Google's search results, it also seems certain that any change made to the collection process will eventually find its way to ranking criteria.
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