This article was originally published July 19, 2012, then my service’s server crashed, losing months of data. So reposting 10/20/12. I hope parents and educators have seen these two clear signs of how kids are using social media to "be the change." There's 14-year-old Julia Bluhm in Maine who noticed that friends in ballet class were always criticizing their bodies and spearheaded a protest in … [Read more...] about Young change agents leveraging social media