The following poll aggregators are publicly available:
Canadian:
American:
For a review of criticisms, as well as tips for evaluating poll aggregators, check out Natalie Jackson's article, The Rise of Poll Aggregation and Election Forecasting, in the Oxford Handbook of Polling and Polling Methods.
The following is a selection of election results resources that are publicly available:
Canadian:
American
The following is a selection of subscription-based resources available through the University of Toronto Libraries. If you're connecting from off-campus, you will need to enter your UTORid and password.
Visit the Data & Statistical Resources at the UTM Library for more opinion poll resources.