diff --git a/ckan/logic/action/get.py b/ckan/logic/action/get.py
index 6febd0f7c7f..fbab846d930 100644
--- a/ckan/logic/action/get.py
+++ b/ckan/logic/action/get.py
@@ -939,10 +939,26 @@ def render_removed_tag_activity(context, activity, detail):
     return render('activity_streams/removed_tag.html',
             extra_vars = {'activity': activity, 'detail': detail})
 
+def render_new_package_extra_activity(context, activity, detail):
+    return render('activity_streams/new_package_extra.html',
+        extra_vars = {'activity': activity, 'detail': detail})
+
+def render_changed_package_extra_activity(context, activity, detail):
+    return render('activity_streams/changed_package_extra.html',
+        extra_vars = {'activity': activity, 'detail': detail})
+
+def render_deleted_package_extra_activity(context, activity, detail):
+    return render('activity_streams/deleted_package_extra.html',
+        extra_vars = {'activity': activity, 'detail': detail})
+
 def render_changed_package_activity(context, activity):
     details = activity_detail_list(context=context,
         data_dict={'id': activity['id']})
+
     if len(details) == 1:
+        # If an activity has only one activity detail we try to find an
+        # activity detail renderer to use instead of rendering the normal
+        # 'changed package' template.
         detail = details[0]
         activity_detail_renderers = {
             'Resource': {
@@ -954,6 +970,11 @@ def render_changed_package_activity(context, activity):
               'added': render_added_tag_activity,
               'removed': render_removed_tag_activity,
               },
+            'PackageExtra': {
+                'new': render_new_package_extra_activity,
+                'changed': render_changed_package_extra_activity,
+                'deleted': render_deleted_package_extra_activity
+              },
             }
         object_type = detail['object_type']
         if activity_detail_renderers.has_key(object_type):
@@ -961,7 +982,7 @@ def render_changed_package_activity(context, activity):
             if activity_detail_renderers[object_type].has_key(activity_type):
                 renderer = activity_detail_renderers[object_type][activity_type]
                 return renderer(context, activity, detail)
-    
+
     return render('activity_streams/changed_package.html',
         extra_vars = {'activity': activity})
 
@@ -1005,7 +1026,8 @@ def _activity_list_to_html(context, activity_stream):
         if not activity_renderers.has_key(activity_type):
             raise NotImplementedError, ("No activity renderer for activity "
                 "type '%s'" % str(activity_type))
-        html.append(activity_renderers[activity_type](context, activity))
+        activity_html = activity_renderers[activity_type](context, activity)
+        html.append(activity_html)
     return literal('\n'.join(html))
 
 def user_activity_list_html(context, data_dict):
diff --git a/ckan/model/package_extra.py b/ckan/model/package_extra.py
index e0774a82b1a..fcdcbda6dad 100644
--- a/ckan/model/package_extra.py
+++ b/ckan/model/package_extra.py
@@ -28,6 +28,23 @@ class PackageExtra(vdm.sqlalchemy.RevisionedObjectMixin,
     def related_packages(self):
         return [self.package]
 
+    def activity_stream_detail(self, activity_id, activity_type):
+        import ckan.model as model
+        import ckan.model.activity as activity
+        import ckan.lib.dictization
+
+        # Handle 'deleted' extras.
+        # When the user marks an extra as deleted this comes through here as a
+        # 'changed' extra. We detect this and change it to a 'deleted'
+        # activity.
+        if activity_type == 'changed' and self.state == u'deleted':
+            activity_type = 'deleted'
+
+        data_dict = ckan.lib.dictization.table_dictize(self,
+                context={'model': model})
+        return activity.ActivityDetail(activity_id, self.id, u"PackageExtra",
+                activity_type, {'package_extra': data_dict})
+
 mapper(PackageExtra, package_extra_table, properties={
     'package': orm.relation(Package,
         backref=orm.backref('_extras',
diff --git a/ckan/templates/activity_streams/changed_package_extra.html b/ckan/templates/activity_streams/changed_package_extra.html
new file mode 100644
index 00000000000..5f1fafe5e8c
--- /dev/null
+++ b/ckan/templates/activity_streams/changed_package_extra.html
@@ -0,0 +1,21 @@
+<html
+  xmlns="http://www.w3.org/1999/xhtml"
+  xmlns:i18n="http://genshi.edgewall.org/i18n"
+  xmlns:py="http://genshi.edgewall.org/"
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  py:strip=""
+  >
+  <xi:include href="../_util.html" />
+<div>
+  <div style="font-weight:bold;">
+    ${h.linked_user(activity.user_id)}
+    <span style="background:yellow;">changed</span>
+    the extra "${detail.data.package_extra.key}"
+    in the dataset ${package_summary(activity.data.package)}<br/>
+    ${h.render_datetime(activity.timestamp, '%B %d %Y')}
+  </div>
+  <div style="color:#999;">
+    ${h.markdown_extract(activity.data.package.notes)}
+  </div>
+</div>
+</html>
diff --git a/ckan/templates/activity_streams/deleted_package_extra.html b/ckan/templates/activity_streams/deleted_package_extra.html
new file mode 100644
index 00000000000..433a0254500
--- /dev/null
+++ b/ckan/templates/activity_streams/deleted_package_extra.html
@@ -0,0 +1,21 @@
+<html
+  xmlns="http://www.w3.org/1999/xhtml"
+  xmlns:i18n="http://genshi.edgewall.org/i18n"
+  xmlns:py="http://genshi.edgewall.org/"
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  py:strip=""
+  >
+  <xi:include href="../_util.html" />
+<div>
+  <div style="font-weight:bold;">
+    ${h.linked_user(activity.user_id)}
+    <span style="background:yellow;">deleted</span>
+    the extra "${detail.data.package_extra.key}"
+    from the dataset ${package_summary(activity.data.package)}<br/>
+    ${h.render_datetime(activity.timestamp, '%B %d %Y')}
+  </div>
+  <div style="color:#999;">
+    ${h.markdown_extract(activity.data.package.notes)}
+  </div>
+</div>
+</html>
diff --git a/ckan/templates/activity_streams/new_package_extra.html b/ckan/templates/activity_streams/new_package_extra.html
new file mode 100644
index 00000000000..2dba8215343
--- /dev/null
+++ b/ckan/templates/activity_streams/new_package_extra.html
@@ -0,0 +1,21 @@
+<html
+  xmlns="http://www.w3.org/1999/xhtml"
+  xmlns:i18n="http://genshi.edgewall.org/i18n"
+  xmlns:py="http://genshi.edgewall.org/"
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  py:strip=""
+  >
+  <xi:include href="../_util.html" />
+<div>
+  <div style="font-weight:bold;">
+    ${h.linked_user(activity.user_id)}
+    <span style="background:yellow;">added</span>
+    the extra "${detail.data.package_extra.key}"
+    to the dataset ${package_summary(activity.data.package)}<br/>
+    ${h.render_datetime(activity.timestamp, '%B %d %Y')}
+  </div>
+  <div style="color:#999;">
+    ${h.markdown_extract(activity.data.package.notes)}
+  </div>
+</div>
+</html>