Rittenhouse Book Distributors has announced the addition of digital resources, available on the R2 Library Platform, to its Core Collection Update Service. The Core Collection Update Service (CCU) is offered by Rittenhouse Book Distributors, and is a free service. The CCU service offers a review of a library's core health sciences print collection, and provides a cost quote for all titles that can be updated with subsequent editions. The Core Collection Update Service will include digital resources available through the R2 Library. Offering R2 Library titles via the Core Collection Update Service is designed to enable librarians to consider and purchase both digital and print content applicable to their collections. This free updating service is available to all libraries.