One of the biggest concerns about a Microhoo is the expectation of a significant culture clash. The same sentiment does not exist when pondering a Microsoft/AOL marriage.
Additionally, Microsoft's bid was unsolicited. Time Warner, on the other hand, has publicly said that it's open to selling off AOL.
AOL recently doubled its audience with the acquisition of Bebo. Together, the social network and AOL's instant messaging platform, AIM, reach 80 million users worldwide. Additionally, AOL has spent $1 billion building a display ad network. With online advertising the driving force behind Microsoft's desire to catch Google, an AOL acquisition could make more sense for the Redmond-based software company.