LearningXL | Top 100 Networks for People Who Want to Change the World
http://www.unixl.com/blog/2008/top-100-networks-for-people-who-want-to-change-the-world/

Links to some sites that may help us make the world better

100 social network per gente che vuole cambiare il mondo

Social Media

Socialbrite is a learning hub & sharing community that brings together top experts in social media, social causes and online philanthropy. We're here to share insights about the tools and best practices that drive the social Web and advance the social good