This article reports on the most recent search-engine company to join with academic libraries in digitizing large collections of books to make them easily searchable online. Yahoo Inc. has teamed up with the University of California system, the University of Toronto, and several archives and technology companies on a project that could potentially bring the complete texts of millions of volumes into digital form. The new archive is called the Open Content Alliance, and it was conceived in part by Brewster Kahle, director of the Internet Archive, a nonprofit digital library. Leaders of the project stress that no books currently under copyright will be scanned unless the copyright holders give explicit permission. Yahoo officials say that the project is not a response to Google's partnership with five major research libraries to scan millions of books, and that some planning for the Yahoo project was under way before Google announced its plans last December. Other participants in the project are Adobe, the European Archive, the National Archives of England, O'Reilly Media, and Hewlett-Packard Labs.