In the twenty-first century, literacy skills increasingly reflect technology use and the abilities necessary to problem-solve, collaborate, and present information through multi-media. As technology becomes more readily available to all students, concepts of literacy change. Researchers and theorists from various disciplines define and describe 21st century literacies using many terms that are inadvertently interchanged and/or unfamiliar to teachers. The purpose of this article is to review contemporary definitions of literacy to clarify what is currently known about 21st century literacy skills.