Univerity of Toronto's various Speaker Series

University of Toronto's Centre for the Study of the United States: Speaker Series - this is mostly politics, economy and societal differences between Canada and the US.

UofT's Centre for Innovation Law and Policy is a great site for a look at global political issues. They also have a speaker series (that has nothing booked right now) with archives containing the PowerPoint presentations.

UofT's Bookstore Speaker Series - usually talks by an author who has just published a book. There are sometimes interesting speakers.