Jumo , a new venture started by Chris Hughes, Facebook’s cofounder and the social media maven behind Barack Obama’s 2008 presidential campaign, launched in public beta today. Billed as a social network for social causes and activism, the service aims to help people find and discover issues they care about with their friends, keep tabs on them through news and updates, and over time, help support their work and raise awareness. A nonprofit itself, Jumo is the latest example of broad efforts throughout the industry to bring the energy and innovation of venture-backed startups to the world of philanthropy . Getting started with the service requires you to connect your Facebook account, after which you’re asked to select various issues, ranging from Arts and Culture to Education, Health, and Human Rights, and rate them according to your level of interest. Jumo then suggests charities and organizations to follow out of the 3,500 it has signed up for its initial launch.