RedLightGreen is a useful tool from the Research Libraries Group for finding books and generating subject bibliographies. See Gary Price's short review in SearchEngineWatch 10/31. From the RLG website: "RedLightGreen is one of our newest projects. It is designed specifically for undergraduates using the Web—and the libraries that support them. RedLightGreen.com delivers information from RLG members about more than 130 million books for education and research; and it links students back to their campus libraries for the books they select."