There's Random Hacks of Kindness (http://www.rhok.org/ http://www.rhok.org/): "Random Hacks of Kindness is a community of innovation focused on developing prac

There's Random Hacks of Kindness (http://www.rhok.org/ http://www.rhok.org/): "Random Hacks of Kindness is a community of innovation focused on developing practical open source solutions to disaster risk management and climate change adaptation challenges. Random Hacks of Kindness was founded in 2009 in partnership between Google, Microsoft, Yahoo!, NASA and the World Bank." Johnny Long founded Hackers for Charity in 2008: http://www.hackersforcharity.org/ http://www.hackersforcharity.org/ - see announcement talk: http://www.youtube.com/watch?v=5CWrzVJYLWw http://www.youtube.com/watch?v=5CWrzVJYLWw Hack for Change (http://hackforchange.com/ http://hackforchange.com/) might be interesting as well.