I had an interesting conversation with a friend who used to run an import/export shop here in San Francisco, and has been working for peace in the Middle East since the 70s. I was explaining to him some of what I'd learned about social entrepreneurship. I told him that the upcoming business trend (in my humble opinion) was a super-set of green business. That the new business trend would be companies incorporating all kinds of social change into their core business practices.
Just one day later, thanks to the power of internet synchronicity, there was a great article on SocialEdge called "The Arrival of Ethical Business". Keep a close eye on this one, folks. Changing the world is going to be big business.