Yes magazine is the best periodical I have seen on how to change the world society to be more inclusive, environmentally sound, and equitable in terms of the basic necessities of life.
Yes magazine talks about our world's real problems, and what people all over the world are doing to solve those problems.
Although the problems are huge, and the institutions standing in the way of progress are stubbornly short-sighted, Yes magazine is actually optimistic, because it talks about how we can surmount the obstacles.
I think the world will be a better place when more people get behind efforts like Yes magazine.
Yes magazine also has a fine website, and a line of great books.
And check out the Yes Action Resource Center.