It is called "Foodsharing". (foodsharing.de)
In brief, adherents in this organisation use their Internet website to share edible food that’s been foraged from grocery-store dumpsters. An efficient way of “rescuing” food for distribution just before it is thrown away.
The organisation has registered more than 12,000 people across the country in just two months of its existence!
I think this idea should be spread over the globe!