Author: Annie Frind.
Year started: 2011.
About: Just 1 Thing believes that by doing one good thing for the world you will create a far-reaching, endless ripple effect.
I just encountered the site Just Do 1 Thing and I think the idea is pretty inspiring, so you may want to check it out.
So nothing much to evaluate, but I really like the idea, like whenever you think about this site you are stimulated thinking about one thing you can do right now (or later), which is exactly what is happening right now to me.
So I certainly recommend going there.