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joined:Aug 12, 2004
It's also a good customer service thing to remind people they're being paid from AdSense...
but are there *really* people who don't remember that they're using AdSense?
It's called customer engagement and it's a good practice, simply good business
...also wondering why AdSense team would send it so late after the payment was made.
Bill made excellent suggestions in a previous post: The email was for market research or customer engagement. Could be data collection for research because of the tracking codes and single pixel image that phones home to let Google know the email was opened.