The history of technology you probably know is one of men and machines, garages and riches, alpha nerds and programmers. But the little-known fact is that female visionaries have always been at the vanguard of technology and innovation--they've just been erased from the story. Until now. Women are not ancillary to the history of technology; they turn up at the very beginning of every important wave. But they've often been hidden in plain sight, their inventions and contributions touching our lives in ways we don't even realize. Author Claire L. Evans finally gives these unsung female heroes their due with her insightful social history of the Broad Band, the women who made the internet what it is today.