Spartz founded the Harry Potter site www.MuggleNet.com at age 12 in 1999. He co-authored books about the Harry Potter series. He is the CEO of Spartz media. Spartz media have many interests. In January 2010 Spartz launched OMG Facts. OMG-Facts.com receives 30 million monthly page views, has 500,000 subscribers on YouTube,and 4.5 million followers on Twitter He graduated in May 2009 with a degree in management from the University of Notre Dame's Mendoza College of Business.