Relevant is one of my favorite magazines. And it's from Relevant that Reject Apathy came to be. "At RELEVANT, we’ve recognized the movement of a generation restless to change the world. A generation anxious to use the abundance God has blessed them with to be a blessing to others. RejectApathy.com was borne out of that desire—a desire to live out true compassion and to embrace justice the right way. Reject Apathy is a voice for the movement—a place where like-minded world-changers can connect, dialogue and challenge one another as we work to affect change locally and globally" (source).
I'm not super familiar with the site but there's all kinds of resources and links. You can also look at the current magazine issue of Reject Apathy.