Microsoft resumes Yahoo! acquisition talks to the tune of $50 billion
From the holy grail perspective of search market share, this buyout would give Microsoft around 27% of the market, versus Google's 65%; not a bad leap ahead, but still a costly one. Something that hasn't been mentioned so far is the fate of MSN and Microsoft's recently revamped Live services; a company only needs so many portals, online services and communities, and it would only make sense that at least some of these properties would be assimilated or de-commissioned if the buyout went down.
A lot of speculation is to be done over a proposal this monumental. But first, we'll have to wait and see if Yahoo! is actually interested.