Microsoft has made an unsolicited US$44.6 billion offer for Yahoo in a move to boost its competitive edge against Google in the online services market, reports AP. “The unexpected announcement Friday comes as Yahoo and Microsoft have fallen behind Google in the race to capture online advertising dollars. The deal could also give lift to the entire technology market,” AP notes. “In a letter to Yahoo’s board of directors, Microsoft Chief Executive Steve Ballmer said the company will bid $31 per share, representing a 62 percent premium to Yahoo’s closing stock price Thursday.” Under terms of the proposed deal, Yahoo shareholders could choose to receive cash or Microsoft common shares, with the total purchase consisting of 50 percent each cash and stock.