http://www.facebook.com/apps/applica...1688033&ref=ts
For every person who accepts a can of soup on facebook, Campbells will donate 1 can of soup to a canadian food bank. If you dislike having 18291283 apps on your profile, great news, it doesn't have to show up unless you want to share it on your profile.
You can send 3 "cans" everyday.
Considering there are so many people on facebook, it's disheartening to see that only 3000 cans out of 50000 potential cans have been donated. It doesn't cost any money to send or receive.