From The NY Times:
For decades, the district south of downtown and alongside San Francisco Bay here was known as either Rincon Hill, South Beach or South of Market. This spring, it was suddenly rebranded on Google Maps to a name few had heard: the East Cut.
The peculiar moniker immediately spread digitally, from hotel sites to dating apps to Uber, which all use Google’s map data. The name soon spilled over into the physical world, too. Real-estate listings beckoned prospective tenants to the East Cut. And news organizations referred to the vicinity by that term.
The swift rebranding of the roughly 170-year-old district is just one example of how Google Maps has now become the primary arbiter of place names. With decisions made by a few Google cartographers, the identity of a city, town or neighborhood can be reshaped, illustrating the outsize influence that Silicon Valley increasingly has in the real world.
Google said it created its maps from third-party data, public sources, satellites and, often most important, users. People can submit changes, which are reviewed by Google employees. A Google spokeswoman declined further comment.
…some submissions are ruled upon by people with little local knowledge of a place, such as contractors in India, said one former Google Maps employee, who declined to be named because he was not authorized to speak publicly. Other users with a history of accurate changes said their updates to maps take effect instantly.