Today Google agreed to pay apple $22.5M for allegedly breaching Safari users' browser settings to set cookies. That's evil. The payment is apparently a record high, but for Google is just a slap on the wrist
But then the above-linked Business Week article quotes Google to say "...[we have taken] steps to remove the ad cookies, which collected no personal information, from Apple’s browsers.” This strikes me as fundamentally dishonest. No, cookies gather no information. However, web servers accessing cookies left previously do gather information, so placing the cookies aided Google's gathering of information about users' browsing behavior. And a user's browsing behavior strikes me as private.