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Wi-Fi is based on the ubiquitous networking scheme called Ethernet, which Estrin, 46, worked on in the 1970s, when she met Carrico, who is now 51.
FORBES: Mr. and Mrs. Network
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But some also concede that GM had a point in its decision to stop buying ads on the ubiquitous social-networking site, for a variety of reasons.
FORBES: Does GM Have a Point About Facebook? Yes, Rivals Concede
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IP, such as Skype and Vonage, or networking companies such as Cisco (especially once fast, wireless internet access has become ubiquitous and totally reliable).
ECONOMIST: Stand by for a spot of creative destruction