Users have to opt in to sharing click events with Bing for features like suggested sites ("if they have Internet Explorer equipped with certain features"), and

Users have to opt in to sharing click events with Bing for features like suggested sites ("if they have Internet Explorer equipped with certain features"), and that's what they track. IMO, if users give permission, it's fair game for MS to use that data -- that's still more of an option than what most of the Internet gives users. Also, AFAIK Hotmail (or live or outlook or whatever it's called now) does not, and never has, targeted ads based on keywords in the email. I'm not that big on privacy so I still use Gmail but at least MS is not being hypocritical in that respect. Bing search, on the other hand, does all the sorts of tracking and mining Google (and Facebook etc.) does, but so far the Scroogled campaign hasn't said anything about search.