diff --git a/StartHere.ipynb b/StartHere.ipynb
index 031dc91ce1..7e27fcc580 100644
--- a/StartHere.ipynb
+++ b/StartHere.ipynb
@@ -46,7 +46,7 @@
     "[Display of Null](doc/groovy/showNullExecutionResult.ipynb), [Custom Displayers and `jvm-repr`](doc/groovy/JvmRepr.ipynb).\n",
     "\n",
     "### Forms, Widgets, and Interaction\n",
-    "[EasyForm](doc/groovy/EasyForm.ipynb), [Output Widget](doc/groovy/OutputWidget.ipynb), [Output Containers and Layout Managers](doc/groovy/OutputContainers.ipynb), [Groovy interface to Jupyter JS Widgets](doc/groovy/JavaWidgets.ipynb), [Interactive recomputation](doc/groovy/Interactive.ipynb).\n",
+    "[EasyForm](doc/groovy/EasyForm.ipynb), [Output Widget](doc/groovy/OutputWidget.ipynb), [Output Containers and Layout Managers](doc/groovy/OutputContainers.ipynb), [Groovy interface to Jupyter JS Widgets](doc/groovy/JavaWidgets.ipynb), [3D Visualization and Maps](doc/groovy/3D.ipynb), [Interactive recomputation](doc/groovy/Interactive.ipynb).\n",
     "\n",
     "### Automation\n",
     "[Progress Reporting API](doc/groovy/ProgressUpdateReporting.ipynb), [Initialization Cells](doc/python/InitCells.ipynb), [Get Code](doc/groovy/CodeCell.ipynb), [Run Another Cell](doc/groovy/RunCells.ipynb).\n",