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allecher137 t1_jd2spmy wrote

Reply to comment by Mission-Simple-5040 in ELI5: Why does Google offer all these free services like Google Docs, Sheets, Drive, Sites, Forms, etc. without any ads on them? How does Google benefit from this and why do they invest so much in creating and maintaining them? by Elena_Edie

Metadata is the data about the data. For example they might not read the numbers in your spreadsheet, but they know your IP, browser info, and times you are active online.

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