A few days ago Google sent me the following email, which somehow sent me keywords for other websites.

Google did a follow up email appoligizing for the first email sending me the wrong keywords and sending me a new list of keywords.

Almost every time I start a new AdWords campaign I am impressed by new features that recommend more keywords inline during the sign-up process. This is sorta where there is great risk in data sharing with ad networks. The more data you feed into the network the more likely that data is to pour right back out into the hands of competitors & higher market prices.