Rather than write a book strictly about the rise of Google as a business, technology journalist Battelle targets his research on the concept of Internet search, beginning the book with a discussion of an abstract idea he terms the ""Database of Intentions,"" defined as the sum total of all queries that pour into search engines daily, revealing the intricacies and idiosyncrasies of our culture. Though most of the book is devoted to the search engine giant (which Battelle reports corners 51 percent of the search engine market), the author also includes chapters on ""Search, Before Google"" and the ""Who, What, Where, Why, When. And How (much)"" of search. Battelle is at his best when describing the creation of Google, especially through the yin-yang personalities of its founders, Larry Page and Sergey Brin, and in describing the company's culture. Though Battelle's descriptions of Internet search technology can get too technical for readers without a computer science background, the book is a deeply researched and nimbly reported look at how search has defined the Internet and how it will continue to be a tremendous reflection of culture.