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This is already an option on Facebook called "Custom Audience" so I'm not surprised that Google is releasing this as well. Regarding the privacy implications,
by calbear81 11y ago
This is already an option on Facebook called "Custom Audience" so I'm not surprised that Google is releasing this as well.
Regarding the privacy implications, almost every major e-commerce site already uses third party marketing systems, oftentimes with e-mail address, so this is pretty much the same. They're not selling the data to a 3rd party since they are a 1st party using a 3rd party tool.