At the beginning of the twenty-first century, humans have reached symbiosis with their information technologies. The Information Revolution is in many ways an invisible revolution, because we have adapted to our technologies so readily and so well. Increasingly, computers, media, and networks infiltrate each personís awareness, connecting everyone in a global consciousness. They facilitate our political revolutions and our personal revelations. Scientists such as K. Eric Drexler predict that our information technologies will transform everything from manufacturing to medicine when we build computers and machines the size of molecules. Nanotechnology epitomizes the double-edged nature of our cybernetic technologies, which promise to raise the standard of human life and grind it into dust, depending on who has power over them. Or perhaps, as computer scientist Bill Joy fears, they may become so complex and adaptable that they evolve by themselves, evading human control. Technologist Jaron Lanier emphasizes that we must remember the value at the heart of the Information Revolution: humanism.