This is really strange – MS is still using Yahoo! Search Marketing – what even makes me wonder more is this:

from MSN ADVERTISING
MSN currently offers keyword-targeting search results in the “Sponsored Sites” section of the search results page at the top and bottom of the page. These are link placements that are limited to three paid clients per keyword and are available to advertisers with a minimum annual spend of $75,000. Please visit the Featured Sites section for more information.