Quote:
Originally Posted by FizzyWater
I've had Amazon offer me information on non-book items I looked at on Facebook or some other online retailer. I doubt Overdrive is sharing your epub history with Amazon - I'd be more likely to think Amazon is just watching your browsing history (like Facebook and Google and likely others do).
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Google Ads, Facebook and others sell services to site owners using tracking pixels to deliver you "relevant" ads. I'm sure Amazon is a big customer of all of them, along with its own propietary systems.