There is a report at the link below titled:
Don't look now, but Google is watching you...
Google will use its surveillance of web surfing habits to figure out which ads are best suited to each individual's interests - a practice likely to illuminate just how much the internet search leader has been learning about millions of people around the world.
Ask.com also snoops on users. There are likely many others but none as blatant and ambitious as Google.
If you use Google toolbar, every search you make will be reported right back to Google along with your IP address and your geographic location.
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A picture of my cave
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