diff --git a/sugar/browser/BrowserActivity.py b/sugar/browser/BrowserActivity.py
index 2e379add..b01a8a40 100644
--- a/sugar/browser/BrowserActivity.py
+++ b/sugar/browser/BrowserActivity.py
@@ -84,6 +84,9 @@ class BrowserActivity(activity.Activity):
 		
 		self._setup_shared(self.uri)
 	
+	def publish(self):
+		print 'Publish %s' % self.activity_get_id() 
+	
 	def get_embed(self):
 		return self.embed
 	
diff --git a/sugar/shell/PresenceWindow.py b/sugar/shell/PresenceWindow.py
index d5eddc2f..9d21a7e9 100644
--- a/sugar/shell/PresenceWindow.py
+++ b/sugar/shell/PresenceWindow.py
@@ -11,8 +11,10 @@ class PresenceWindow(gtk.Window):
 	_MODEL_COL_ICON = 1
 	_MODEL_COL_BUDDY = 2
 	
-	def __init__(self):
+	def __init__(self, activity_container):
 		gtk.Window.__init__(self)
+		
+		self._activity_container = activity_container
 
 		self._pservice = PresenceService.get_instance()
 		self._pservice.connect("buddy-appeared", self._on_buddy_appeared_cb)
@@ -63,9 +65,17 @@ class PresenceWindow(gtk.Window):
 		vbox.pack_start(sw)
 		sw.show()
 
+		share_button = gtk.Button('Share')
+		share_button.connect('clicked', self._share_button_clicked_cb)
+		vbox.pack_start(share_button)
+		share_button.show()
+
 		self.add(vbox)
 		vbox.show()
 	
+	def _share_button_clicked_cb(self, button):
+		self._activity_container.current_activity.publish()
+	
 	def _on_buddyList_buddy_selected(self, widget, *args):
 		(model, aniter) = widget.get_selection().get_selected()
 		name = self._buddy_list_model.get(aniter, self._MODEL_COL_NICK)
diff --git a/sugar/shell/activity.py b/sugar/shell/activity.py
index 84296bd8..d0cfacb8 100644
--- a/sugar/shell/activity.py
+++ b/sugar/shell/activity.py
@@ -19,6 +19,7 @@ ON_RECONNECTED_TO_SHELL_CB = "reconnected_to_shell"
 ON_CLOSE_FROM_USER_CB = "close_from_user"
 ON_LOST_FOCUS_CB = "lost_focus"
 ON_GOT_FOCUS_CB = "got_focus"
+ON_PUBLISH_CB = "publish"
 
 class ActivityDbusService(dbus.service.Object):
 	"""Base dbus service object that each Activity uses to export dbus methods.
@@ -28,7 +29,7 @@ class ActivityDbusService(dbus.service.Object):
 
 	_ALLOWED_CALLBACKS = [ON_CONNECTED_TO_SHELL_CB, ON_DISCONNECTED_FROM_SHELL_CB, \
 			ON_RECONNECTED_TO_SHELL_CB, ON_CLOSE_FROM_USER_CB, ON_LOST_FOCUS_CB, \
-			ON_GOT_FOCUS_CB]
+			ON_GOT_FOCUS_CB, ON_PUBLISH_CB]
 
 	def __init__(self, activity):
 		self._activity = activity
@@ -123,6 +124,10 @@ class ActivityDbusService(dbus.service.Object):
 		"""Called by the shell to notify us that the user closed us."""
 		self._call_callback(ON_CLOSE_FROM_USER_CB)
 
+	@dbus.service.method(ACTIVITY_SERVICE_NAME)
+	def publish(self):
+		"""Called by the shell to request the activity to publish itself on the network."""
+		self._call_callback(ON_PUBLISH_CB)
 
 class Activity(object):
 	"""Base Activity class that all other Activities derive from."""
@@ -133,6 +138,7 @@ class Activity(object):
 		self._dbus_service.register_callback(ON_DISCONNECTED_FROM_SHELL_CB, self._internal_on_disconnected_from_shell_cb)
 		self._dbus_service.register_callback(ON_RECONNECTED_TO_SHELL_CB, self._internal_on_reconnected_to_shell_cb)
 		self._dbus_service.register_callback(ON_CLOSE_FROM_USER_CB, self._internal_on_close_from_user_cb)
+		self._dbus_service.register_callback(ON_PUBLISH_CB, self._internal_on_publish_cb)
 		self._dbus_service.register_callback(ON_LOST_FOCUS_CB, self._internal_on_lost_focus_cb)
 		self._dbus_service.register_callback(ON_GOT_FOCUS_CB, self._internal_on_got_focus_cb)
 		self._has_focus = False
@@ -187,6 +193,10 @@ class Activity(object):
 		self.shutdown()
 		self.on_close_from_user()
 
+	def _internal_on_publish_cb(self):
+		"""Callback when the dbus service object tells us the user has closed our activity."""
+		self.publish()
+
 	def _internal_on_lost_focus_cb(self):
 		"""Callback when the dbus service object tells us we have lost focus."""
 		self._has_focus = False
@@ -262,6 +272,10 @@ class Activity(object):
 	# Pure Virtual methods that subclasses may/may not implement
 	#############################################################
 
+	def publish(self):
+		"""Called to request the activity to publish itself on the network."""
+		pass
+
 	def on_lost_focus(self):
 		"""Triggered when this Activity loses focus."""
 		pass
diff --git a/sugar/shell/shell.py b/sugar/shell/shell.py
index 72b3ad3d..aaf15694 100755
--- a/sugar/shell/shell.py
+++ b/sugar/shell/shell.py
@@ -73,7 +73,10 @@ class ActivityHost(dbus.service.Object):
 
 	def __close_button_clicked_error_cb(self, error):
 		pass
-		
+	
+	def publish(self):
+		self.peer_service.publish()
+	
 	def tab_close_button_clicked(self, button):
 		self.peer_service.close_from_user(reply_handler = self.__close_button_clicked_reply_cb, \
 										  error_handler = self.__close_button_clicked_error_cb)
@@ -292,6 +295,8 @@ class ActivityContainer(dbus.service.Object):
 		activity = ActivityHost(self, activity_name)
 		self.activities.append((sender, activity))
 
+		self.current_activity = activity
+
 		#self.__print_activities()
 		return activity.get_host_activity_id()
 
@@ -368,7 +373,7 @@ def main():
 	activity_container = ActivityContainer(service, session_bus)
 	activity_container.show()
 	
-	presence_window = PresenceWindow()
+	presence_window = PresenceWindow(activity_container)
 	presence_window.show()
 	
 	console.set_parent_window(activity_container.window)