Interesting changes made by Microsoft to their Adcenter (their equivalent of Google’s Adwords).
- Microsoft may use matching criteria other than keyword searches
to display your advertisements.
- Microsoft may display your advertisements on its network of
advertising channels operated by the Microsoft network of
participating websites and other distribution outlets.
What the heck does “matching criteria other than keyword searches” mean?
I’ll have to look further into that. I’m not sure what they could mean… they’re going to use some kind of Mind-meld interface to read the thoughts of MSN users? “You typed doggie biscuits but we think you meant to type doggie treats. Here are the ads you would’ve seen if you typed what you were actually thinking about“.
And, the second note… MSN will show your ads on their network of sites… like Google shows Adwords ads on sites displaying Adsense.
Good idea, that.
Microsoft. Reading your mind. And Googles. 
(hmmm, perhaps point one leads to two. After all, if Microsoft is going to show your ads on other people’s sites, they have to show ads that haven’t been triggered by a keyword search. Instead, the ads will be triggered on websites with content that matches your ads.)
Either way, it’s interesting that there’s no opt-out. I guess you either accept the conditions or take your business elsewhere.