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@@ -15,4 +15,5 @@ and [Video of Cloning a Git Repository Using NetBeans IDE](https://netbeans.org/
 * [Savage Developers Guide](https://savage.nps.edu/Savage/developers.html) resources for [DIS](https://savage.nps.edu/Savage/developers.html#DIS)
 * UML [Sequence diagram](https://en.wikipedia.org/wiki/Sequence_diagram) on Wikipedia
 * [WireShark](https://wireshark.org) and [WireShark Tutorial for Beginners](https://www.youtube.com/watch?v=TkCSr30UojM) video by Anson Alexander
-* [X3D-Edit](https://savage.nps.edu/X3D-Edit/#Downloads) as Netbeans Plugin
+* [X3D-Edit](https://savage.nps.edu/X3D-Edit/#Downloads) as Netbeans Plugin including DIS PDU Player/Recorder and PDU Viewer
+* [X3D for Web Authors](http://x3dgraphics.com) book, examples and slidesets including [X3D Distributed Interactive Simulation (DIS)](http://x3dgraphics.com/slidesets/X3dForAdvancedModeling/DistributedInteractiveSimulation.pdf)