The library has many resources for researching material, for example http://main.library.utoronto.ca/eir/resources.cfm. There are many different indexes available in the UofT library catalogs. Focus on those that address your topic.
There are many commercial search engines on the Web, such as Yahoo, Alta Vista, Google, Dog Pile, Lycos, Webcrawler, and Excite. These may help to find information about your topic.
Some of the sources below provide electronic information, others direct you to paper journals that can be found in the U of T Libraries.