Shortly after Simon & Schuster’s June 26 announcement that it had concluded a 15-month pilot test and would make its entire ebook catalog available to all U.S. libraries, Macmillan last week announced that it will make all frontlist ebook titles available to U.S. libraries as well. These moves mark a milestone in terms of the availability of popular ebooks, as Macmillan and Simon & Schuster became the final two of the “big five” publishers to allow U.S. libraries to license and loan all titles in their ebook collections.