diff --git a/plugins/Mollom/MollomPlugin.php b/plugins/Mollom/MollomPlugin.php
index d918a6f6b3..382ce2ee5b 100644
--- a/plugins/Mollom/MollomPlugin.php
+++ b/plugins/Mollom/MollomPlugin.php
@@ -83,7 +83,8 @@ class MollomPlugin extends Plugin
         );
         $response = $this->mollom('mollom.checkContent', $data);
         if ($response['spam'] == MOLLOM_ANALYSIS_SPAM) {
-          throw new ClientException(_m("Spam Detected."), 400);
+          // TRANS: Client exception thrown when notice content triggers the spam filter.
+          throw new ClientException(_m('Spam Detected.'), 400);
         }
         if ($response['spam'] == MOLLOM_ANALYSIS_UNSURE) {
           //if unsure, let through
diff --git a/plugins/Msn/MsnPlugin.php b/plugins/Msn/MsnPlugin.php
index 187486eedc..ccc190334d 100644
--- a/plugins/Msn/MsnPlugin.php
+++ b/plugins/Msn/MsnPlugin.php
@@ -46,7 +46,6 @@ set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/ext
  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
  * @link      http://status.net/
  */
-
 class MsnPlugin extends ImPlugin {
     public $user = null;
     public $password = null;
@@ -59,6 +58,7 @@ class MsnPlugin extends ImPlugin {
      * @return string Name of service
      */
     public function getDisplayName() {
+        // TRANS: Display name of the MSN instant messaging service.
         return _m('MSN');
     }
 
@@ -184,13 +184,16 @@ class MsnPlugin extends ImPlugin {
     */
     public function initialize() {
         if (!isset($this->user)) {
-            throw new Exception("Must specify a user");
+            // TRANS: Exception thrown when configuration for the MSN plugin is incomplete.
+            throw new Exception(_m('Must specify a user.'));
         }
         if (!isset($this->password)) {
-            throw new Exception("Must specify a password");
+            // TRANS: Exception thrown when configuration for the MSN plugin is incomplete.
+            throw new Exception(_m('Must specify a password.'));
         }
         if (!isset($this->nickname)) {
-            throw new Exception("Must specify a nickname");
+            // TRANS: Exception thrown when configuration for the MSN plugin is incomplete.
+            throw new Exception(_m('Must specify a nickname.'));
         }
 
         return true;
@@ -209,6 +212,7 @@ class MsnPlugin extends ImPlugin {
             'author' => 'Luke Fitzgerald',
             'homepage' => 'http://status.net/wiki/Plugin:MSN',
             'rawdescription' =>
+            // TRANS: Plugin description.
             _m('The MSN plugin allows users to send and receive notices over the MSN network.')
         );
         return true;
diff --git a/plugins/Msn/README b/plugins/Msn/README
index fa7bc2fb22..a56bacd64c 100644
--- a/plugins/Msn/README
+++ b/plugins/Msn/README
@@ -9,9 +9,10 @@ add "addPlugin('msn',
     array('setting'=>'value', 'setting2'=>'value2', ...);"
 to the bottom of your config.php
 
-scripts/imdaemon.php included with StatusNet must be running. It will be started by
-the plugin along with their other daemons when you run scripts/startdaemons.sh.
-See the StatusNet README for more about queuing and daemons.
+scripts/imdaemon.php included with StatusNet must be running. It will be started
+by the plugin along with their other daemons when you run
+scripts/startdaemons.sh. See the StatusNet README for more about queuing and
+daemons.
 
 Settings
 ========
@@ -29,4 +30,3 @@ addPlugin('msn', array(
     'password' => '...',
     'nickname' => '...'
 ));
-
diff --git a/plugins/Msn/msnmanager.php b/plugins/Msn/msnmanager.php
index a8996ecafa..82d40d69c9 100644
--- a/plugins/Msn/msnmanager.php
+++ b/plugins/Msn/msnmanager.php
@@ -29,7 +29,6 @@ if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
  * In a multi-site queuedaemon.php run, one connection will be instantiated
  * for each site being handled by the current process that has MSN enabled.
  */
-
 class MsnManager extends ImManager {
     public $conn = null;
     protected $lastPing = null;
@@ -109,7 +108,8 @@ class MsnManager extends ImManager {
                     'user' => $this->plugin->user,
                     'password' => $this->plugin->password,
                     'alias' => $this->plugin->nickname,
-                    'psm' => 'Send me a message to post a notice',
+                    // TRANS: MSN bot status message.
+                    'psm' => _m('Send me a message to post a notice'),
                     'debug' => false
                 )
             );
@@ -240,7 +240,8 @@ class MsnManager extends ImManager {
 
         if (!$result) {
             common_log_db_error($wm, 'INSERT', __FILE__);
-            throw new ServerException('DB error inserting queue item');
+            // TRANS: Server exception thrown when a message to be sent through MSN cannot be added to the database queue.
+            throw new ServerException(_m('Database error inserting queue item.'));
         }
 
         return true;