Google confirmed last Friday on the whereabouts of the single data center where Matt Cutts said Caffeine would go live first this holiday season before a full roll out sometime in January of next year.
The data center where Google caffeine’s update is now “live 50% of the time” is 209.85.225.103.
Major changes to the SERPS on 209.85.225.103 have been reported on a few threads: DigitalPoint Forums, Google Webmaster Help and WebmasterWorld.
