Susanna Throop, Assistant Professor of History, is now a Contributor at Smarthistory at the Khan Academy online. She has written four introductory essays on the crusades, her area of expertise, and is working with Smarthistory’s executive editors to develop a short accompanying video. Smarthistory is the leading open educational resource for art history. It is designed to make high-quality learning material, crafted by professionals in their fields, freely available to anyone, anywhere. Used by millions of teachers and learners around the world, Smarthistory has been widely recognized and has won a number of awards, including a coveted Webby Award for best educational website in 2009, and was listed as one of Time Magazine’s 50 Best Websites of 2011.