Remember to always read food labels and watch out for a change of formulation. You may want to call the manufacturer of your favourite foods to encourage them to continue producing gluten-free or wheat-free food products.
Check these alerts regularly to make sure you do not eat a product known to be contaminated with wheat and gluten.
More alert sources will be added over time.
Wheat Allergy Alerts from the Canadian Food Inspection Agency
This feed from the Canadian Food Inspection Agency is primarily related to wheat and gluten, but for some reason they have other types of food safety recalls listed as well.