• www.ebandolier.com  Evidence-based healthcare • http://www.ncbi.nlm.nih.gov  The National Library of Medicine’s search engine MEDLINE • http://hiru.mcmaster.ca/COCHRANE/DEFAULT.htm  Cochrane Collaboration, which prepares, maintains, and promotes the systematic review of healthcare interventions • http://som.Flinders.edu.au/FUSA/COCHRANE  Australasian Cochrane Centre, which has a methods working group on systematic review of screening and diagnostic tests • http://www.york.ac.uk/inst/crd/searcher.htm  The NHS Centre for Review and Dissemination in York (UK). Also includes systematic reviews of diagnostic problems in the Data-Base of Abstracts of Review of Effectiveness (DARE) in the Cochrane Library • http://cebm.jr2.ox.ac.uk  The NHS Research and Development Centre for Evidence-Based Medicine. Helpful for learning, with resources to guide in asking specific questions and searching for the best evidence. Also provides a set of worksheets for critical appraisal • http://www.med.ualberta.ca/ebm  The University of Alberta EBM tool kit. Very good introduction with a comprehensive approach to learning EBM • http://www.nlm.nih.gov • http://www.ahcpr.gov/news  Clinical guidelines for the US Agency for Health Care Policy and Research • http://nhscrd.york.ac.uk  Provides critical evaluations of published economic evaluations