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All the core Google businesses - search, ads, Android, YouTube, maps, and so on - will still be called Google, and will be led by new CEO Sundar Pichai, who was previously in charge of product at the old Google.
Current Google execs, including CEO Larry Page, Executive Chairman Eric Schmidt, and Chief Counsel David Drummond, will now have the exact same roles at Alphabet. Ruth Porat will be CFO of both the new Google and the entire Alphabet company.
So who are the other bigshots in the new company? Here's a rundown...