Metro ServiceSocial media makes it possible for ordinary citizens to help their communities in significant ways. ■ Metro Service / Contributed Social media changed the world. Despite their relative infancy, platforms such as Facebook, Twitter and Instagram are now ingrained in the everyday lives of billions of people across the globe. Though it has its critics, social media also has the potential to effect positive change. Grassroots fundraising efforts such as the “Ice Bucket Challenge,” in which participants dumped ice cold water over their heads to raise awareness about Lou Gehrig’s disease, or ALS, might have seemed silly at the time, but that’s just one example of how social media was
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