Yahoo CEO Marissa Mayer gave birth to a healthy baby boy last night.Katie J.M. Baker10/01/12 12:40pmFiled to: Marissa MayerBabiesYahoo2EditInvite manuallyPromoteDismissUndismissHideShare to KinjaToggle Conversation toolsGo to permalinkYahoo CEO Marissa Mayer gave birth to a healthy baby boy last night.Reply2 repliesLeave a reply