Mashable.com
Muhammad Yunus is here. The President of Tanzania is here. Tony Bates (CEO of Skype) is here. Desmond Tutu is here. Kate James (COO of Gates Foundation is here. And, I am here. If you're not so fortunate you can watch is live here: http://mashable.com/2011/09/20/social-good-summit-livestream-2/ and look for #socialgood tweets.