Background: The CRD databases are a key resource for health professionals, policy makers and researchers, providing free access to quality assessed evidence to inform health and social care policy and practice. The literature evaluating the effectiveness and costeffectiveness of health care interventions is growing year on year, and these studies can be difficult and time consuming to identify and appraise. Objectives: DARE and NHS EED assist decision-makers by systematically identifying and describing systematic reviews and economic evaluations, appraising their quality and highlighting their relative strengths and weaknesses. The HTA database provides a comprehensive listing of in progress and published health technology assessments, many of which are not accessible from any other readily searchable source. The CRD databases contain over 45,000 records, including over 6,000 quality assessed reviews and over 7,000 abstracts of quality assessed economic evaluations. Each year at least 1,200 quality assessed abstracts are added to DARE, and 480 to NHS EED. Developments: The databases are continually evolving to best meet user needs, keep pace with developments in research and exploit new technologies. This presentation will describe the major improvements to be implemented in 2010. Details of the process for production of content include; the added value of the databases as a whole; the rationale behind the content of DARE, NHS EED and the HTA database and the different types of records contained in each. In particular the structure of abstracts, and the value of the quality assessment processes will be highlighted. The introduction of a new content management system and public interface offers a range of improvements and innovations, including real time publication of abstracts; easier identification of abstracts of interest through improved filtering, browse facilities, and MeSH search; enhanced facility to save and export searches; as well as the introduction of a range of alert options.