Millions of people depend on Google to search, collect and organize data, for email and smart phones; and Google has found ways to turn all that information into billions of dollars. But Google has already demonstrated that what it gives it can take away. Now comes a new advance in personalized technology, Google Glass. Glance up and there's computer data in front of your eye. Ask a question, get an answer: Where's the bank or the restaurant? How does this price compare? But who am I talking to? That raises more questions than answers about privacy, social interaction and the influence of digital networks on daily life. Is Google Glass a step toward brain implants and computer control? Is Google losing its cool?