diff --git a/dart.admin.inc b/dart.admin.inc
index c79bd18..4bdf2cd 100644
--- a/dart.admin.inc
+++ b/dart.admin.inc
@@ -163,7 +163,7 @@ function dart_admin_settings($form, &$form_state) {
     '#theme' => 'dart_key_vals_form',
   );
   for ($i = 0; $i < $key_val_count; $i++) {
-    $form['global_key_vals']['dart_kvs'][$i] = _dart_key_val_form($i, isset($key_vals[$i]) ? $key_vals[$i] : null);
+    $form['global_key_vals']['dart_kvs'][$i] = _dart_key_val_form($i, isset($key_vals[$i]) ? $key_vals[$i] : NULL);
   }
 
   // Javascript.
diff --git a/dart.adtest.inc b/dart.adtest.inc
index 5f72b79..f1f29a8 100644
--- a/dart.adtest.inc
+++ b/dart.adtest.inc
@@ -1,6 +1,12 @@
 <?php
 
 /**
+ * @file
+ * Creates a test page for DART ad tag.
+ */
+
+
+/**
  * Menu callback; Displays all DART tags on a single page for testing purposes.
  */
 function dart_test_page() {
diff --git a/dart.module b/dart.module
index 8a26aea..ae40477 100644
--- a/dart.module
+++ b/dart.module
@@ -1,6 +1,11 @@
 <?php
 
 /**
+ * @file
+ * Integrates DART Ad Tags into your site.
+ */
+
+/**
  * The doublclick URL.
  */
 define('DART_URL', ($GLOBALS['is_https'] ? 'https://ad.doubleclick.net' : 'http://ad.doubleclick.net'));
diff --git a/modules/dart_scheduler/dart_scheduler.module b/modules/dart_scheduler/dart_scheduler.module
index f505a7f..f74fec3 100644
--- a/modules/dart_scheduler/dart_scheduler.module
+++ b/modules/dart_scheduler/dart_scheduler.module
@@ -1,6 +1,12 @@
 <?php
 
 /**
+ * @file
+ * Schedule DART tags to be enabled or disabled via cron.
+ */
+
+
+/**
  * The maximum number of key|value pair fields to show on forms by defaut.
  */
 define('DART_MAX_EVENTS', 10);
diff --git a/modules/dart_search/dart_search.module b/modules/dart_search/dart_search.module
index a993460..78ac5fa 100644
--- a/modules/dart_search/dart_search.module
+++ b/modules/dart_search/dart_search.module
@@ -1,6 +1,11 @@
 <?php
 
 /**
+ * @file
+ * Integrate search terms into DART tags.
+ */
+
+/**
  * Implements hook_dart_key_vals().
  */
 function dart_search_dart_key_vals($tag) {
diff --git a/modules/dart_taxonomy/dart_taxonomy.module b/modules/dart_taxonomy/dart_taxonomy.module
index 3fe6a3a..4843c1f 100644
--- a/modules/dart_taxonomy/dart_taxonomy.module
+++ b/modules/dart_taxonomy/dart_taxonomy.module
@@ -1,6 +1,12 @@
 <?php
 
 /**
+ * @file
+ * Integrate taxonomy terms into DART tags.
+ */
+
+
+/**
  * Implements hook_theme().
  */
 function dart_taxonomy_theme() {
diff --git a/plugins/contexts/dart_context_reaction_settings.inc b/plugins/contexts/dart_context_reaction_settings.inc
index 18cbb86..1e2fe0f 100644
--- a/plugins/contexts/dart_context_reaction_settings.inc
+++ b/plugins/contexts/dart_context_reaction_settings.inc
@@ -1,4 +1,8 @@
 <?php
+/**
+ * @file
+ * Settings form to use within the Context module settings page.
+ */
 
 /**
  * Expose DART site & zone settings as context reactions.
diff --git a/plugins/contexts/dart_context_reaction_tags.inc b/plugins/contexts/dart_context_reaction_tags.inc
index 28ec014..44ab24c 100644
--- a/plugins/contexts/dart_context_reaction_tags.inc
+++ b/plugins/contexts/dart_context_reaction_tags.inc
@@ -1,4 +1,8 @@
 <?php
+/**
+ * @file
+ * Settings form to use within the Context module settings page.
+ */
 
 /**
  * Expose DART tags as context reactions.
diff --git a/plugins/export_ui/dart_ctools_export_ui.inc b/plugins/export_ui/dart_ctools_export_ui.inc
index 4ddf994..ba7f27c 100644
--- a/plugins/export_ui/dart_ctools_export_ui.inc
+++ b/plugins/export_ui/dart_ctools_export_ui.inc
@@ -102,20 +102,18 @@ function dart_tag_form(&$form, &$form_state) {
     '#description' => t('Override the !settings for this ad tag.', array('!settings' => l(t('global dart settings'), 'admin/configure/dart'))),
     '#group' => 'settings',
   );
-  $default_site = variable_get('dart_global_site', '');
   $form['overrides']['site'] = array(
     '#type' => 'textfield',
     '#title' => t('Site'),
-    '#description' => t('In rare circumstances you may want to override the !settings: %default', array('!settings' => l(t('default DART site'), 'admin/configure/dart'), '%default' => empty($default_site) ? t('No default value has been set.') : $default_site)),
+    '#description' => t('In rare circumstances you may want to override the <a href="!settings">default DART site</a>: %default', array('!settings' => 'admin/configure/dart', '%default' => variable_get('dart_global_site', t('No default value has been set.')))),
     '#required' => FALSE,
     '#maxlength' => 32,
     '#default_value' => $tag->settings['overrides']['site'],
   );
-  $default_zone = variable_get('dart_global_zone', '');
   $form['overrides']['zone'] = array(
     '#type' => 'textfield',
     '#title' => t('Zone'),
-    '#description' => t('In rare circumstances you may want to override the !settings: %default', array('!settings' => l(t('default DART zone'), 'admin/configure/dart'), '%default' => empty($default_zone) ? t('No default value has been set.') : $default_zone)),
+    '#description' => t('In rare circumstances you may want to override the <a href="!settings">default DART zone</a>: %default', array('!settings' => 'admin/configure/dart', '%default' => variable_get('dart_global_zone', t('No default value has been set.')))),
     '#required' => FALSE,
     '#maxlength' => 32,
     '#default_value' => $tag->settings['overrides']['zone'],
@@ -182,7 +180,7 @@ function dart_tag_form(&$form, &$form_state) {
     '#theme' => 'dart_key_vals_form',
   );
   for ($i = 0; $i < $key_val_count; $i++) {
-    $form['key_vals_group']['key_vals'][$i] = _dart_key_val_form($i, isset($tag->settings['key_vals'][$i]) ? $tag->settings['key_vals'][$i] : null);
+    $form['key_vals_group']['key_vals'][$i] = _dart_key_val_form($i, isset($tag->settings['key_vals'][$i]) ? $tag->settings['key_vals'][$i] : NULL);
   }
 }
 
@@ -198,7 +196,7 @@ function dart_tag_form_validate($form, &$form_state) {
  */
 function dart_tag_form_submit($form, &$form_state) {
   if (count($form_state['values']['key_vals']) >= $form_state['values']['key_vals_form_count']) {
-    drupal_set_message('It appears that you ran out of key|value pair form fields. More fields will be added the next time you edit this tag.');
+    drupal_set_message(t('It appears that you ran out of key|value pair form fields. More fields will be added the next time you edit this tag.'));
   }
 }
 
diff --git a/plugins/export_ui/dart_tag_ui.class.php b/plugins/export_ui/dart_tag_ui.class.php
index 89efbdf..cc381f5 100644
--- a/plugins/export_ui/dart_tag_ui.class.php
+++ b/plugins/export_ui/dart_tag_ui.class.php
@@ -63,7 +63,7 @@ class dart_tag_ui extends ctools_export_ui {
         $this->sorts[$name] = $item->{$this->plugin['export']['admin_title']};
         break;
       case 'name':
-	$this->sorts[$name] = $item->name;
+        $this->sorts[$name] = $item->name;
         break;
       case 'storage':
         $this->sorts[$name] = $item->type . $name;