Dr. danah boyd (she prefers to style her name in lowercase letters) is a cutting-edge scholar of technology (at Microsoft Research Center, New York University, and Harvard's Berkman Center for Internet and Society) and a youth advocate with the daunting research skills of an anthropologist and the political zeal of an activist. Her first book, "It's Complicated: The Social Lives of Networked Teens" (Yale University Press: 296 pp., $25), proves she is a writer and thinker in a category of her own invention.