bX: The Ex Libris Scholarly Recommender Service for all libraries Jerusalem, Israel—June 25, 2010. Ex Libris Group is pleased to announce that the popular, unique bX scholarly recommender service is now available in even more library interfaces. Launched in May 2009 as an additional service for customers of the SFX OpenURL link resolver, bX is in use at more than 250 SFX libraries worldwide. A set