Niche Internet retailer JMX Brands has promoted Seth Carter to Eco Friendly Digs manager.  The Indiana University East alum will be responsible for overseeing and developing the Sarasota-based company’s newest ecommerce store at ecofriendlydigs.com. In alignment with JMX Brands’ commitment to sustainability, Eco Friendly Digs carries home furnishings and décor that are environmentally friendly. Under Carter’s leadership, the company plans to become the leading online retailer of sustainable home products…