1. From September 22-24, the third annual Social Good Summit presented by Mashable, 92Y, UN Foundation, Ericsson, UN Development Programme, and the Bill & Melinda Gates Foundation will unite global leaders as they share how to use the power of innovative thinking and technology to solve the greatest challenges facing the world today. Speakers include Forest Whitaker, Deepak Chopra, Nick Kristof, America Ferrera, Jeffrey Sachs and many more. There are opportunities to participate in New York or meetups around the world.