AP File Photo/Mark LennihanA Times Square news ticker flashes a headline about Microsoft above a billboard for Yahoo! in New York in file photo. Microsoft Corp. has pounced on slumping Internet icon Yahoo Inc. Friday with an unsolicited takeover offer of $44.6 billion in its boldest bid yet to challenge Google Inc.'s dominance of the lucrative online search and advertising markets.

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Microsoft makes unexpected $44.6B bid for Yahoo

• By ncs-import
• February 1, 2008