diff --git a/actions/groupsearch.php b/actions/groupsearch.php
index f0cca71561..55f4cee625 100644
--- a/actions/groupsearch.php
+++ b/actions/groupsearch.php
@@ -105,7 +105,7 @@ class GroupSearchResults extends GroupList
 
     function __construct($user_group, $terms, $action)
     {
-        parent::__construct($user_group, $terms, $action);
+        parent::__construct($user_group, null, $action);
         $this->terms = array_map('preg_quote',
                                  array_map('htmlspecialchars', $terms));
         $this->pattern = '/('.implode('|',$terms).')/i';
diff --git a/actions/twitapistatuses.php b/actions/twitapistatuses.php
index 87043b1821..c589bd9b1c 100644
--- a/actions/twitapistatuses.php
+++ b/actions/twitapistatuses.php
@@ -456,7 +456,7 @@ class TwitapistatusesAction extends TwitterapiAction
     function friends($args, $apidata)
     {
         parent::handle($args);
-        $includeStatuses=! (boolean) $args['lite'];
+        $includeStatuses= !(array_key_exists('lite', $args) and $args['lite']);
         return $this->subscriptions($apidata, 'subscribed', 'subscriber', false, $includeStatuses);
     }
 
@@ -469,7 +469,7 @@ class TwitapistatusesAction extends TwitterapiAction
     function followers($args, $apidata)
     {
         parent::handle($args);
-        $includeStatuses=! (boolean) $args['lite'];
+        $includeStatuses= !(array_key_exists('lite', $args) and $args['lite']);
         return $this->subscriptions($apidata, 'subscriber', 'subscribed', false, $includeStatuses);
     }
 
diff --git a/classes/Session.php b/classes/Session.php
index d641edbbe4..79a69a96ea 100644
--- a/classes/Session.php
+++ b/classes/Session.php
@@ -85,9 +85,18 @@ class Session extends Memcached_DataObject
 
             return $session->insert();
         } else {
-            $session->session_data = $session_data;
+            if (strcmp($session->session_data, $session_data) == 0) {
+                self::logdeb("Not writing session '$id'; unchanged");
+                return true;
+            } else {
+                self::logdeb("Session '$id' data changed; updating");
 
-            return $session->update();
+                $orig = clone($session);
+
+                $session->session_data = $session_data;
+
+                return $session->update($orig);
+            }
         }
     }
 
diff --git a/lib/default.php b/lib/default.php
index f9670cb7f9..329b041e9a 100644
--- a/lib/default.php
+++ b/lib/default.php
@@ -140,16 +140,15 @@ $default =
         array('enabled' => true),
         'sms' =>
         array('enabled' => true),
-        'twitter' =>
-        array('enabled' => true),
         'twitterbridge' =>
         array('enabled' => false),
         'integration' =>
         array('source' => 'StatusNet', # source attribute for Twitter
               'taguri' => $_server.',2009'), # base for tag URIs
 	'twitter' =>
-	array('consumer_key'    => null,
-	      'consumer_secret' => null),
+	array('enabled'       => true,
+	    'consumer_key'    => null,
+	    'consumer_secret' => null),
         'memcached' =>
         array('enabled' => false,
               'server' => 'localhost',
diff --git a/lib/searchaction.php b/lib/searchaction.php
index 0d9f85a8f1..130b28ff52 100644
--- a/lib/searchaction.php
+++ b/lib/searchaction.php
@@ -135,16 +135,21 @@ class SearchAction extends Action
     }
 
     function searchSuggestions($q) {
-        $qe = urlencode($q);
-        $message = sprintf(_(<<<E_O_T
+        $message = _(<<<E_O_T
 * Make sure all words are spelled correctly.
 * Try different keywords.
 * Try more general keywords.
 * Try fewer keywords.
 
+E_O_T
+);
+        if (!common_config('site', 'private')) {
+            $qe = urlencode($q);
+            $message .= sprintf(_(<<<E_O_T
+
 You can also try your search on other engines:
 
-* [Twingly](http://www.twingly.com/search?q=%s&content=microblog&site=identi.ca)
+* [Twingly](http://www.twingly.com/search?q=%s&content=microblog&site=%%%%site.server%%%%)
 * [Tweet scan](http://www.tweetscan.com/indexi.php?s=%s)
 * [Google](http://www.google.com/search?q=site%%3A%%%%site.server%%%%+%s)
 * [Yahoo](http://search.yahoo.com/search?p=site%%3A%%%%site.server%%%%+%s)
@@ -152,6 +157,7 @@ You can also try your search on other engines:
 
 E_O_T
 ), $qe, $qe, $qe, $qe, $qe);
+        }
         $this->elementStart('dl', array('id' => 'help_search', 'class' => 'help'));
         $this->element('dt', null, _('Search help'));
         $this->elementStart('dd', 'instructions');
diff --git a/lib/util.php b/lib/util.php
index d249b154fc..be10647fcb 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -998,7 +998,7 @@ function common_set_returnto($url)
 function common_get_returnto()
 {
     common_ensure_session();
-    return $_SESSION['returnto'];
+    return (array_key_exists('returnto', $_SESSION)) ? $_SESSION['returnto'] : null;
 }
 
 function common_timestamp()
diff --git a/plugins/FBConnect/FBCLoginGroupNav.php b/plugins/FBConnect/FBCLoginGroupNav.php
index 6e12c20403..81b2520a4c 100644
--- a/plugins/FBConnect/FBCLoginGroupNav.php
+++ b/plugins/FBConnect/FBCLoginGroupNav.php
@@ -78,16 +78,20 @@ class FBCLoginGroupNav extends Widget
         // action => array('prompt', 'title')
         $menu = array();
 
-        $menu['login'] = array(_('Login'),
-                         _('Login with a username and password'));
+        if (!common_config('site','openidonly')) {
+            $menu['login'] = array(_('Login'),
+                             _('Login with a username and password'));
 
-        if (!(common_config('site','closed') || common_config('site','inviteonly'))) {
-            $menu['register'] = array(_('Register'),
-                                _('Sign up for a new account'));
+            if (!(common_config('site','closed') || common_config('site','inviteonly'))) {
+                $menu['register'] = array(_('Register'),
+                                    _('Sign up for a new account'));
+            }
         }
 
-        $menu['openidlogin'] = array(_('OpenID'),
-                               _('Login or register with OpenID'));
+        if (common_config('openid', 'enabled')) {
+            $menu['openidlogin'] = array(_('OpenID'),
+                                   _('Login or register with OpenID'));
+        }
 
         $menu['FBConnectLogin'] = array(_('Facebook'),
                                _('Login or register using Facebook'));
diff --git a/plugins/FBConnect/FBCSettingsNav.php b/plugins/FBConnect/FBCSettingsNav.php
index 29724d6bdf..ed02371e25 100644
--- a/plugins/FBConnect/FBCSettingsNav.php
+++ b/plugins/FBConnect/FBCSettingsNav.php
@@ -77,32 +77,34 @@ class FBCSettingsNav extends Widget
         $this->action->elementStart('dd');
 
         # action => array('prompt', 'title')
-        $menu =
-          array('imsettings' =>
-                array(_('IM'),
-                      _('Updates by instant messenger (IM)')),
-                'smssettings' =>
-                array(_('SMS'),
-                      _('Updates by SMS')),
-                'twittersettings' =>
-                array(_('Twitter'),
-                      _('Twitter integration options')),
-                'FBConnectSettings' =>
-                array(_('Facebook'),
-                      _('Facebook Connect settings')));
+        $menu = array();
+        if (common_config('xmpp', 'enabled')) {
+            $menu['imsettings'] =
+              array(_('IM'),
+                    _('Updates by instant messenger (IM)'));
+        }
+        if (common_config('sms', 'enabled')) {
+            $menu['smssettings'] =
+              array(_('SMS'),
+                    _('Updates by SMS'));
+        }
+        if (common_config('twitter', 'enabled')) {
+            $menu['twittersettings'] =
+              array(_('Twitter'),
+                    _('Twitter integration options'));
+        }
+        $menu['FBConnectSettings'] =
+          array(_('Facebook'),
+                _('Facebook Connect settings'));
 
         $action_name = $this->action->trimmed('action');
         $this->action->elementStart('ul', array('class' => 'nav'));
 
         foreach ($menu as $menuaction => $menudesc) {
-            if ($menuaction == 'imsettings' &&
-                !common_config('xmpp', 'enabled')) {
-                continue;
-            }
             $this->action->menuItem(common_local_url($menuaction),
-				    $menudesc[0],
-				    $menudesc[1],
-				    $action_name === $menuaction);
+                                    $menudesc[0],
+                                    $menudesc[1],
+                                    $action_name === $menuaction);
         }
 
         $this->action->elementEnd('ul');
diff --git a/plugins/FBConnect/FBConnectPlugin.php b/plugins/FBConnect/FBConnectPlugin.php
index 593b49b4ed..ff74aade45 100644
--- a/plugins/FBConnect/FBConnectPlugin.php
+++ b/plugins/FBConnect/FBConnectPlugin.php
@@ -232,6 +232,14 @@ class FBConnectPlugin extends Plugin
     {
 
         $user = common_current_user();
+        $connect = 'FBConnectSettings';
+        if (common_config('xmpp', 'enabled')) {
+            $connect = 'imsettings';
+        } else if (common_config('sms', 'enabled')) {
+            $connect = 'smssettings';
+        } else if (common_config('twitter', 'enabled')) {
+            $connect = 'twittersettings';
+        }
 
         if (!empty($user)) {
 
@@ -266,13 +274,8 @@ class FBConnectPlugin extends Plugin
                 _('Home'), _('Personal profile and friends timeline'), false, 'nav_home');
             $action->menuItem(common_local_url('profilesettings'),
                 _('Account'), _('Change your email, avatar, password, profile'), false, 'nav_account');
-            if (common_config('xmpp', 'enabled')) {
-                $action->menuItem(common_local_url('imsettings'),
-                    _('Connect'), _('Connect to IM, SMS, Twitter'), false, 'nav_connect');
-            } else {
-             $action->menuItem(common_local_url('smssettings'),
-                 _('Connect'), _('Connect to SMS, Twitter'), false, 'nav_connect');
-            }
+            $action->menuItem(common_local_url($connect),
+                _('Connect'), _('Connect to services'), false, 'nav_connect');
             if (common_config('invite', 'enabled')) {
                 $action->menuItem(common_local_url('invite'),
                     _('Invite'),
@@ -300,18 +303,30 @@ class FBConnectPlugin extends Plugin
              }
          }
          else {
-             if (!common_config('site', 'closed')) {
-                 $action->menuItem(common_local_url('register'),
-                     _('Register'), _('Create an account'), false, 'nav_register');
+             if (!common_config('site', 'openidonly')) {
+                 if (!common_config('site', 'closed')) {
+                     $action->menuItem(common_local_url('register'),
+                         _('Register'), _('Create an account'), false, 'nav_register');
+                 }
+                 $action->menuItem(common_local_url('login'),
+                     _('Login'), _('Login to the site'), false, 'nav_login');
+             } else {
+                 $this->menuItem(common_local_url('openidlogin'),
+                                 _('OpenID'), _('Login with OpenID'), false, 'nav_openid');
              }
-             $action->menuItem(common_local_url('login'),
-                 _('Login'), _('Login to the site'), false, 'nav_login');
          }
 
          $action->menuItem(common_local_url('doc', array('title' => 'help')),
              _('Help'), _('Help me!'), false, 'nav_help');
-         $action->menuItem(common_local_url('peoplesearch'),
-             _('Search'), _('Search for people or text'), false, 'nav_search');
+         if ($user || !common_config('site', 'private')) {
+             $action->menuItem(common_local_url('peoplesearch'),
+                 _('Search'), _('Search for people or text'), false, 'nav_search');
+         }
+
+        // We are replacing the primary nav entirely; give other
+        // plugins a chance to handle it here.
+
+        Event::handle('EndPrimaryNav', array($action));
 
         return false;
     }