CMA Infobase - Searchable database of Canadian clinical practice guidelines, from the Canadian Medical Association. - http://mdm.ca/cpgsnew/cpgs/index.asp
National Guideline Clearinghouse - The Agency for Healthcare Research and Quality in the United States presents a searchable database of clinical practice guidelines, abstracts, and an annotated bibliography. - http://www.guideline.gov/
Guidelines International Network - Association of organisations and individuals involved in the systematic development and application of clinical practice guidelines. Features a searchable list of members. - http://www.g-i-n.net/
Recommended Clinical Practice Guidelines - Presented by the Ontario Guidelines Advisory Committee, with details of the recommendation process and a list of publications. - http://www.gacguidelines.ca/