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Re:Google Maps' Moat Is Evaporating by uptown on Wednesday December 30, 2020 @05:58PM (#25587287)
Foursquare, but not with parking lot data, to my knowledge:

https://www.cbinsights.com/research/alternative-data-future-...

Satellite image companies sell this type of alternative data to buyers:

https://newsroom.haas.berkeley.edu/how-hedge-funds-use-satel...

https://www.theatlantic.com/magazine/archive/2019/05/stock-v...

Some of the vendors are RS Metrics, Descartes Labs and Orbital Insight.

Re:Google Maps' Moat Is Evaporating by faitswulff on Thursday December 31, 2020 @04:18PM (#25597242)
Unfortunate that none of these, even when purchased, would be a substitute for actually looking at the parking lot in real time.