Change We Can Profit From: A start-up inspired by Barack Obama (economist.com)

Flash mobs for not only fun/doing good, but also profit? This doesn't sound like something you can get wealthy doing, but if you have other priorities, seems reasonable.

Does anyone have figures/stats on how much of an impact social or "web 2.0" for-profit do-gooders are having?

(profit vs. nonprofit) vs. (do good vs. be greedy)

Let's untangle some dichotomies.

Does anyone have a link to the "green venture fund" discribed as organized on facebook, where individuals contribute as little as $100 ?

It sounds like it could be something like Prosper, but more focused on small startups, which would be pretty interesting.

As a side note... Check out http://www.carrotmob.org/ and watch the little video. It's cute and get's the point across.

Consider using something like this in your startup's web site, HN readers. :)