Microsoft buys into Health Search

This is additive to my original post on Dr.Google. Microsoft today announced that it plans to acquire Medstory a California health search company in Google's backyard. What is Microsoft up to and can this translate into a meaningful advantage for Microsoft? I believe it could if integrated well. Medstory is back by some of silicon valley's savvy techrazzi. Microsoft's strategy is to integrate Medstory with the MSN constellation and present users searching for medical information a solution. Some of the biggest online advertisers per ad capita are drug companies. Older users are more likely to use this service and are more likely to have a higher incomes. Microsoft's strategy could be to get a foot hold into a small but very lucrative piece of the add pie and extend outwardly.