As the MSFT-YHOO deals gets near, a set of regulatory questions that are likely to come as the deal gets federal scrutiny (especially in light of how GOOG-YHOO deal that never happened because of the regulatory issues):
—How will MSFT-YHOO share search/user info?
—How will the two share this info with their partners?
—How will the ad targeting work for users and on the backend?
—What impact does this have on smaller players?
—How does it affect competition in the space, on the following parameters: lower prices, better service and greater innovation?
—Will this materially reduce competitive rivalry between the two companies?
—What effect would this have, if any, on MSFT’s desktop OS and related services share, especially as the industry moves towards cloud services?

Any others?