diff --git a/extensions/sample-extension/module/MOD-INF/controller.js b/extensions/sample-extension/module/MOD-INF/controller.js
new file mode 100644
index 000000000..5a3b375e3
--- /dev/null
+++ b/extensions/sample-extension/module/MOD-INF/controller.js
@@ -0,0 +1,46 @@
+var html = "text/html";
+var encoding = "UTF-8";
+var ClientSideResourceManager = Packages.com.metaweb.gridworks.ClientSideResourceManager;
+
+/*
+ * Function invoked to initialize the extension.
+ */
+/*
+function init() {
+ # Packages.java.lang.System.err.println("Initializing sample extension");
+ # Packages.java.lang.System.err.println(module.getMountPoint());
+
+ // Script files to inject into /project page
+ ClientSideResourceManager.addPaths(
+ "project/scripts",
+ module,
+ [
+ "scripts/project-injection.js"
+ ]
+ );
+
+ // Style files to inject into /project page
+ ClientSideResourceManager.addPaths(
+ "project/styles",
+ module,
+ [
+ "styles/project-injection.less"
+ ]
+ );
+}
+*/
+
+/*
+ * Function invoked to handle each request in a custom way.
+ */
+function process(path, request, response) {
+ // Analyze path and handle this request yourself.
+
+ if (path == "/" || path == "") {
+ send(request, response, "index.vt", context);
+ }
+}
+
+function send(request, response, template, context) {
+ butterfly.sendTextFromTemplate(request, response, context, template, encoding, html);
+}
diff --git a/extensions/sample-extension/module/MOD-INF/module.properties b/extensions/sample-extension/module/MOD-INF/module.properties
new file mode 100644
index 000000000..e442fa6e2
--- /dev/null
+++ b/extensions/sample-extension/module/MOD-INF/module.properties
@@ -0,0 +1,3 @@
+description = Gridworks Sample Extension
+
+templating.macros = macros.vm
diff --git a/extensions/sample-extension/module/index.vt b/extensions/sample-extension/module/index.vt
new file mode 100644
index 000000000..f28cae582
--- /dev/null
+++ b/extensions/sample-extension/module/index.vt
@@ -0,0 +1,21 @@
+#*
+ * Access this page at the URL /extensions/sample/
+ *#
+
+
+ Sample Extension
+
+
+ Sample Extension
+
+ If an extension needs its own page, then this is such an example.
+ However, mostly, extensions only need to inject their own scripts
+ and styles into the /project page.
+
+
+ Here is a sample list using a veloci-macro:
+
+ #set( $greatlakes = ["Superior","Michigan","Huron","Erie","Ontario"] )
+ #makeAList( $greatlakes )
+
+
\ No newline at end of file
diff --git a/extensions/sample-extension/module/macros.vm b/extensions/sample-extension/module/macros.vm
new file mode 100644
index 000000000..18a83bfce
--- /dev/null
+++ b/extensions/sample-extension/module/macros.vm
@@ -0,0 +1,14 @@
+#*
+ This file contains common velocity macros used in all .vt files.
+ For Velocity documentation, see:
+
+ http://velocity.apache.org/engine/releases/velocity-1.5/user-guide.html
+*#
+
+#macro( makeAList $list )
+
+ #foreach($item in $list)
+ - $item
+ #end
+
+#end
\ No newline at end of file
diff --git a/extensions/sample-extension/module/scripts/project-injection.js b/extensions/sample-extension/module/scripts/project-injection.js
new file mode 100644
index 000000000..157499d9b
--- /dev/null
+++ b/extensions/sample-extension/module/scripts/project-injection.js
@@ -0,0 +1,3 @@
+// This file is added to the /project page
+
+var SampleExtension = {};
\ No newline at end of file
diff --git a/extensions/sample-extension/module/styles/project-injection.less b/extensions/sample-extension/module/styles/project-injection.less
new file mode 100644
index 000000000..3e4ad2908
--- /dev/null
+++ b/extensions/sample-extension/module/styles/project-injection.less
@@ -0,0 +1,5 @@
+// LESS styles
+// For documentation, see http://lesscss.org/
+
+@color: blue;
+
diff --git a/main/webapp/WEB-INF/butterfly.properties b/main/webapp/WEB-INF/butterfly.properties
index c2c9cf60e..7b8ae069d 100644
--- a/main/webapp/WEB-INF/butterfly.properties
+++ b/main/webapp/WEB-INF/butterfly.properties
@@ -21,6 +21,9 @@ butterfly.url = /
butterfly.modules.path = modules
butterfly.modules.path = ../../extensions/
+ # Add more paths here if your extensions live elsewhere.
+ # Relative paths are relative to gridworks/main/webapp/
+
butterfly.modules.wirings = WEB-INF/modules.properties
# ---------- Clustering ----
diff --git a/main/webapp/WEB-INF/modules.properties b/main/webapp/WEB-INF/modules.properties
index 1b05a14bb..54e21e2d6 100644
--- a/main/webapp/WEB-INF/modules.properties
+++ b/main/webapp/WEB-INF/modules.properties
@@ -4,4 +4,9 @@
core = /
+# Sample extension's wirings
+# client-side resources of this module will be accessible under this URL path
+sample-extension = /extensions/sample/
+
jython = /extensions/jython/
+