McGraw-Hill is taking on the one-size-fits-all approach to textbooks with its freshly unveiled SmartBook: an e-book that is claimed to adapt to student's learning patterns. Aimed at college students, the SmartBook service peppers users with questions as they read and determines what topics it should present to reinforce learning. Come sometime this spring, the SmartBook will be available for more than 90 course areas starting at $20. It'll be joined by a handful of similar tools for driving home the curriculum, including something called LearnSmart Achieve, which is designed to
