One of the best ways to get a free iPad is to enter contests, where sponsors offer Apple iPad as a prize. You can find many such contests online. Some are only open to Canadians, and this restriction gives you better odds of winning. For example, this contest is open to Canada only:
It is hosted by PrizeToday, a well known Canadian contest sponsor.
There are many different sweepstakes and contests available online, with a variety of prizes. Apple iPad is probably the most popular prize, that is being offered these days. This guarantees that you can find and enter at least 25 iPad contests today.
The more iPad contests exist, the better your chances! If you tried googling for them, but had a hard time finding recent Canadian giveaways, read my article on 'How to Google for iPad Contests and Sweepstakes'.