diff --git a/links.html b/links.html
index ab07e89..93c69ca 100644
--- a/links.html
+++ b/links.html
@@ -79,6 +79,23 @@
 		</div>
 
 		<div class="row">
+			<div class="col-md-4 mb-3">
+				<div class="card full-height">
+					<h4 class="card-header">John Carmack at QuakeCon 2013</h4>
+					<div class="card-body">
+						<p class="card-text">
+							<a href="https://www.youtube.com/watch?v=IyUgHPs86XM"
+									target="_blank">
+								Principles of Lighting and Rendering with John Carmack at QuakeCon 2013
+							</a>
+						</p>
+						<p class="card-text">
+							John Carmack talking about various 3D rendering concepts.
+						</p>
+					</div>
+				</div>
+			</div>
+
 			<div class="col-md-4 mb-3">
 				<div class="card full-height">
 					<h4 class="card-header">Volatility of High Frequency Trading</h4>