Have you ever noticed that if you mention a product in email, it has a way of translating over to ads? In some cases, it might be a coincidence. But if you use Gmail, there is a much higher chance that Google scanned the contents of your email, picked up on a keyword, and delivered a targeted ad based on what you wrote. Oh, you didn’t know?

Source: Hot Hardware – Google Says It Won’t Snoop Your Inbox Anymore For Targeted GMail Ads