Professor Kelly is a specialist on historical pedagogy. His new book, Teaching History in the Digital Age is scheduled for publication in spring 2013. He is also a historian of modern East Central Europe. His most recent book, Without Remorse: Czech National Socialism in Late-Habsburg Austria appeared in 2007.
He has received university, state, and national awards for his work on historical pedagogy including a Pew National Fellowship from the Carnegie Foundation for the Advancement of Teaching (1999), the State Council on Higher Education in Virginia's Outstanding Faculty Award (2005), and George Mason University's Teaching Excellence Award.
Kelly is also an associate director of George Mason's award winning Roy Rosenzweig Center for History and New Media, where he has been either co-director of principal investigator on three major website projects funded by the National Endowment for the Humanities ($790,000 total funding). Two of these projects won the James Harvey Robinson Prize in 2007 from the American Historical Association.
He is a trustee of the Romanian-American Foundation and is an honorary associate of the Centre for Media History at Macquarie University (Australia) and a guest blogger for hist.net (Switzerland).