as a student at the university of missouri,Brian Laoruangroch used to sell refurbished cell phones on eBay as a hobby.But when Brian realized how much money he could make by buying,fixing,and reselling phones,he decided to create his own website to resell the phones. His parent loaned him money,and he received money from his local government to found a company called green mobile,which now has local retail stores and about 20 employees. Brian said balancing work and studies was challenging,but he didn't forget to pay attention in class " I was learning important business concepts while i was using them in my own business,"he said