Xreferplus – (Credo Reference)
First published November 1, 2006 (Booklist).
Xreferplus is an online reference service with more than 2 million entries from more than 207 reference titles. With a focus on ready-reference content, Xreferplus includes subject-specific dictionaries, biographical data, statistics, quotations, and audio and image files from more than 50 publishers. There are two subscription options, Xreferplus 100 and Xreferplus Unlimited. The former allows libraries to select 100 titles from the collection and drop or add titles as needed. The latter is the entire collection, which, beginning in 2007, will grow by 300 titles per year. Available as optional add-ons to either collection are specialist reference titles such as Blackwell Psychology Handbooks. Xreferplus can also be accessed through the Gale Virtual Reference Library.
What makes Xreferplus unique is the cross-referencing—or Xreferences—across titles, disciplines, and publishers. Added to that are the data-visualization search capabilities of the Xrefer Concept Map (which is like brainstorming on steroids), 180,000 pronunciation audio files, thousands of images, dynamic table functionality, a chronology builder, and an interactive world atlas for an “Xtreme” ready-reference experience.
Xrefer’s newest feature, the Chronology Builder, is currently available in one title (The Marcquarie Encyclopedia of Australian Events), but other titles will be on board in three to six months. This feature uses the major subjects of the title to highlight noteworthy events in chronological order. Users may add or remove columns and compare the chronology of various subjects, for example, correlating population growth to recessions and booms. The dynamic table functionality is currently available in three titles (Census, World Factbook, and UN Stats). Again, users may use this tool to create, customize, and sort data within each title. The library administration system allows customization with library logos and links, provides usage statistics, and offers promotional and educational materials. Xreferplus is available as a subscription database with a cost of $2,425 for the 100 package and $3,638 for the unlimited package. Specialist Reference titles are priced separately and may be added to either package. – Sue Polanka