What is Google Cafffine?

A quick search would have revealed that this was a change to the search engine architecture which happened in 2009/2010.

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one more f than google caffine

Well I thought it funny

According to Matt Cutts

"The Caffeine update isn’t about making some UI changes here or there. Currently, even power users won’t notice much of a difference at all. This update is primarily under the hood: we’re rewriting the foundation of some of our infrastructure. But some of the search results do change, so we wanted to open up a preview so that power searchers and web developers could give us feedback."

I also need to know about Google Cuffing by research point of view.

Google caffeine is nothing but the rebboting of search enigne in order to have greater speed, better indexing and displaying more relevant search results.