The following encyclopaedic resources are a good starting point to obtain overviews of Canadian legal topics. They are arranged alphabetically by subject, and include scholarly commentary and references to significant cases and legislation. A note of caution: some parts of these encylopaedias are not as up-to-date as others, so always check the currency of the information in the section in which you are interested.
Ted Tjaden, Researching Canadian Law on Globalex: overview of the Canadian legal system, how to find legislation, case law, secondary sources and key Canadian law texts.
Queen's University Law Library's Legal Research Manual provides information on all aspects of legal research.
The Canadian Legal Research and Writing Guide provides information on all aspects of legal research.
The Law Society of Upper Canada Great Library's Legal Research Guides: topics include finding Canadian caselaw, legislation and journal articles.
The University of Ottawa's Principles of Legal Research: a series of learning modules on legal research topics.
Ted Tjaden's Legal Research and Writing guide