Care2 is a service that makes it easy for everyone to live a green lifestyle while positively impacting the causes that matter most to them. Members are rewarded through Care2’s Butterfly Rewards program, initiated by Bunchball, which provides redeemable butterfly credits. The credits are used toward various good causes, ranging from helping to humanely raise farm and abandoned animals to providing clean drinking water and food to deserving communities. This innovative and effective approach to social good is unique in its use of game mechanics to drive user engagement.