Is there any chance that in the pre-Internet age several thousand people would have found themselves in Jena, a tiny speck of a town in central Louisiana, yesterday? The New York Times has estimated that a crowd of about 10,000 gathered to protest the treatment of six young black men arrested for the beating of a white classmate; event organizers pegged it at closer to 50,000. But either estimate makes clear that the gathering was huge. And the fact that a crowd of that size suddenly materialized without much attention being paid to the case by TV and in print media made me wonder: how exactly did so many people knew that they belonged in Jena yesterday?