Canadian Inventions, Innovations and Inventors: http://www.stc.carleton.ca/inventor.html
Listed in chronological order, this site has hyperlinks to descriptions of inventions and biographies of inventors.

Canadian Intellectual Property Office: http://cipo.gc.ca

Canadian Engineering Marvels - Professional Engineers of Ontario: http://www.peo.on.ca//events/canadian_engineering_marvels.htm
List of engineering projects with hyperlinks to more information.  Substitute these url for the site's defunct links.
To connect with Canadarm information use these urls: http://www.mdrobotics.ca/what_we_do/canadarm.htm, and http://www.space.gc.ca/asc/eng/exploration/canadarm/default.asp