If you’re into giving feedback, this is right up your alley. Google Opinion Rewards for Android is now available for Canadians, giving the chance to offer up a bit of your intelligence via surveys in exchange for some Google Play credits.
Those interested in participating must have an Android device running OS 2.3.3 or higher and Google will “send you surveys around once a week, although it may be more or less frequent. You’ll get a notification on your phone when a short and relevant survey is ready for you, and can receive up to $1.00 USD (or local equivalent) in Play credits for completing it. Questions can range from, ‘Which logo is best?’ and ‘Which promotion is most compelling?’ to ‘When do you plan on traveling next?'”
Pretty simple and might be worth it.