A Firefox extension (which also works in Flock), Effortless Good takes a portion of the revenue generated from Amazon purchases and splits the proceeds between The Rainforest Alliance, Save The Children, The Grameen Foundation, and The Participatory Culture Foundation.

Link to [ Effortless Good ]

Free Rice is a site that seeks to “Give free rice to hungry people by playing a simple word game.”

Free Rice has two goals:

1. Provide English vocabulary to everyone for free.
2. Help end world hunger by providing rice to hungry people for free.

The game is very fun and challenging, take it for a spin.

Link to [ Free Rice ]