diff --git a/zephyr/lib/actions.py b/zephyr/lib/actions.py
index f32fd1fd00..f15d36565a 100644
--- a/zephyr/lib/actions.py
+++ b/zephyr/lib/actions.py
@@ -59,7 +59,17 @@ def do_create_user(email, password, realm, full_name, short_name,
                'short_name': short_name,
                'user': email,
                'domain': realm.domain})
-    return create_user(email, password, realm, full_name, short_name, active)
+    user_profile = create_user(email, password, realm, full_name, short_name, active)
+
+    notice = dict(event=dict(type="realm_user", op="add",
+                             person=dict(email=user_profile.user.email,
+                                         full_name=user_profile.full_name)),
+                  users=[up.id for up in
+                         UserProfile.objects.select_related().filter(realm=user_profile.realm,
+                                                                     user__is_active=True)])
+    tornado_callbacks.send_notification(notice)
+    return user_profile
+
 
 def user_sessions(user):
     return [s for s in Session.objects.all() if s.get_decoded().get('_auth_user_id') == user.id]
@@ -77,6 +87,15 @@ def do_deactivate(user_profile):
                'user': user_profile.user.email,
                'domain': user_profile.realm.domain})
 
+    notice = dict(event=dict(type="realm_user", op="remove",
+                             person=dict(email=user_profile.user.email,
+                                         full_name=user_profile.full_name)),
+                  users=[up.id for up in
+                         UserProfile.objects.select_related().filter(realm=user_profile.realm,
+                                                                     user__is_active=True)])
+    tornado_callbacks.send_notification(notice)
+
+
 def do_change_user_email(user_profile, new_email):
     old_email = user_profile.user.email
     user_profile.user.email = new_email
@@ -706,6 +725,12 @@ def do_events_register(user_profile, apply_markdown=True, event_types=None):
             ret['max_message_id'] = -1
     if event_types is None or "pointer" in event_types:
         ret['pointer'] = user_profile.pointer
+    if event_types is None or "realm_user" in event_types:
+        ret['realm_users'] = [{'email'     : profile.user.email,
+                               'full_name' : profile.full_name}
+                              for profile in
+                              UserProfile.objects.select_related().filter(realm=user_profile.realm,
+                                                                          user__is_active=True)]
 
     # Apply events that came in while we were fetching initial data
     events = get_user_events(user_profile, queue_id, -1)
@@ -714,6 +739,13 @@ def do_events_register(user_profile, apply_markdown=True, event_types=None):
             ret['max_message_id'] = max(ret['max_message_id'], event['message']['id'])
         elif event['type'] == "pointer":
             ret['pointer'] = max(ret['pointer'], event['pointer'])
+        elif event['type'] == "realm_user":
+            if event['op'] == "add":
+                ret['realm_users'].append(simplejson.loads(event['person']))
+            elif event['op'] == "remove":
+                person = simplejson.loads(event['person'])
+                ret['realm_users'] = filter(lambda p: p['email'] != person['email'],
+                                            ret['realm_users'])
 
     if events:
         ret['last_event_id'] = events[-1:]['id']
diff --git a/zephyr/tornado_callbacks.py b/zephyr/tornado_callbacks.py
index a0f9f8f4cb..d1f9272bb3 100644
--- a/zephyr/tornado_callbacks.py
+++ b/zephyr/tornado_callbacks.py
@@ -259,8 +259,18 @@ def process_new_message(data):
     if 'stream_name' in data:
         stream_receive_message(data['realm_id'], data['stream_name'], message)
 
+def process_event(data):
+    event = data['event']
+    for user_profile_id in data['users']:
+        for client in get_client_descriptors_for_user(user_profile_id):
+            if client.accepts_event_type(event['type']):
+                client.add_event(event.copy())
+
 def process_notification(data):
-    if data['type'] == 'new_message':
+    if 'type' not in data:
+        # Generic event that doesn't need special handling
+        process_event(data)
+    elif data['type'] == 'new_message':
         process_new_message(data)
     elif data['type'] == 'pointer_update':
         update_pointer(data['user'], data['new_pointer'])
diff --git a/zephyr/views.py b/zephyr/views.py
index 2d22f179fa..c6a88de63f 100644
--- a/zephyr/views.py
+++ b/zephyr/views.py
@@ -417,16 +417,6 @@ def home(request):
         user_profile.pointer = register_ret['max_message_id']
         user_profile.last_pointer_updater = request.session.session_key
 
-    # Populate personals autocomplete list based on everyone in your
-    # realm.  Later we might want a 2-layer autocomplete, where we
-    # consider specially some sort of "buddy list" who e.g. you've
-    # talked to before, but for small organizations, the right list is
-    # everyone in your realm.
-    people = [{'email'     : profile.user.email,
-               'full_name' : profile.full_name}
-              for profile in
-              UserProfile.objects.select_related().filter(realm=user_profile.realm)]
-
     # Pass parameters to the client-side JavaScript code.
     # These end up in a global JavaScript Object named 'page_params'.
     page_params = simplejson.encoder.JSONEncoderForHTML().encode(dict(
@@ -434,7 +424,7 @@ def home(request):
         poll_timeout          = settings.POLL_TIMEOUT,
         have_initial_messages = user_has_messages,
         stream_list           = gather_subscriptions(user_profile),
-        people_list           = people,
+        people_list           = register_ret['realm_users'],
         initial_pointer       = register_ret['pointer'],
         fullname              = user_profile.full_name,
         email                 = user_profile.user.email,