diff --git a/wiki/SDT3D.wiki b/wiki/SDT3D.wiki
index d3626eb5..1ae86658 100644
--- a/wiki/SDT3D.wiki
+++ b/wiki/SDT3D.wiki
@@ -2,7 +2,10 @@
 
 = CORE and SDT3D =
 
-Info on using the SDT3D 3D GUI with CORE will be listed here.
+SDT3D is a three-dimensional virtual globe GUI developed by NRL, based on NASA's [http://worldwind.arc.nasa.gov/java/ WorldWind Java SDK]. The primary SDT3D website is:
+ * http://cs.itd.nrl.navy.mil/work/sdt/index.php
+
+CORE can export its nodes and links so they appear in the 3D space. The Canvas Size and Scale dialog governs the origin latitude/longitude/altitude for the 2D canvas. Although the 2D canvas has a fixed altitude, EMANE-based mobility script could be used to move nodes around in three dimensions.
 
 = SDT3D Ubuntu 12.04 install =