Marylaine Block, 70, an academic librarian and writer who published the Ex Libris weekly e-zine from 1999 to 2008, died September 31. She served as reference librarian and associate director for public services at St. Ambrose University in Davenport, Iowa, from 1977 to 1999, where she created Best Information on the Net and BookBytes. Her published books include The Thriving Library: Successful Strategies for Challenging Times and Net Effects: How Librarians Can Manage the Unintended Consequences of the Internet.