The document summarizes three existing campaigns that promote low-meat or meat-free diets: 1) The Vegetarian Society is the oldest vegetarian organization in the world dating back to 1847. It provides educational resources and an online community to support people adopting vegetarian diets. 2) Meat Free Mondays is an international campaign founded by Paul McCartney that encourages people to avoid meat one day a week for environmental, financial, and health reasons. It provides new recipes every Monday. 3) The Flexitarian Foodie blog shares flexitarian recipes and tips for adopting a flexitarian diet which is primarily plant-based but occasionally includes meat.