diff --git a/core/modules/link/link.module b/core/modules/link/link.module
index a0d3aaa..4fbfef3 100644
--- a/core/modules/link/link.module
+++ b/core/modules/link/link.module
@@ -15,7 +15,30 @@ function link_help($path, $arg) {
     case 'admin/help#link':
       $output = '';
       $output .= '<h3>' . t('About') . '</h3>';
-      $output .= '<p>' . t('The Link module defines a simple link field type for the Field module. Links are external URLs, can have an optional link text for each link, and they can be formatted when displayed. See the <a href="@field-help">Field module help page</a> for more information about fields.', array('@field-help' => url('admin/help/field'))) . '</p>';
+      $output .= '<p>' . t('The Link module defines a simple link field type for the Field module. It allows the addition of link fields to any "fieldable" entity (content types, blocks, taxonomy terms, users, etc.). Links are <em>external</em> URLs, can have optional link text, and can be formatted when displayed. They are validated during input. <br> For more information see the <a href="@field-help">Field module help page</a>, and the online handbook entry for <a href="@link">Link module</a>.', array('@field-help' => url('admin/help/field'), '@link' => 'https://drupal.org/documentation/modules/link/')) . '</p>';
+      $output .= '<h3>' . t('Uses') . '</h3>';
+      $output .= '<dl>';
+      $output .= '<dt>' . t('Supported formats') . '</dt>';
+      $output .= '<dd>' . t('Links must include the web protocol (http:// or https://) in order to validate. Other scheme names (ftp, git etc.) are not supported.') . '</dd>';
+      $output .= '<dt>' . t('Internal links') . '</dt>';
+      $output .= '<dd>' . t('Internal links <em>cannot</em> be added with the link module. You can use the <a href="@entity-reference">Entity reference</a> to link to any entity within your site.', array('@entity-reference' => url(''))) . '</dd>';
+      $output .= '</dl>';
+      $output .= '<h4>' . t('Configuring field settings') . '</h4>';
+      $output .= '<p>' . t('To configure the settings for a link field, go to the <em> Manage fields</em> page of the entity (e.g. content type) to which the link is attached, and click on the <em>Edit</em> link for your link field. For example, if your link is attached to a content type, visit the  <a href="@content-types">Content types</a> page.' , array('@content-types' => url('admin/structure/types'))) . '</p>';
+      $output .= '<dl>';
+      $output .= '<dt>' . t('Toggle whether link text can be entered') . '</dt>';
+      $output .= '<dd>' . t('To allow the addition of link text to a URL, select <em>Optional</em> or <em>Required</em>.') . '</dd>';
+      $output .= '<dt>' . t('Use placeholders') . '</dt>';
+      $output .= '<dd>' . t('A placeholder is a short hint that is displayed in a URL or text field before a value is entered, and that helps users to fill in the field correctly. Enter appropriate text in the placeholder fields.') . '</dd>';
+      $output .= '</dl>';
+      $output .= '<h4>' . t('Configuring display settings') . '</h4>';
+      $output .= '<p>' . t('To configure how a link is displayed, go to <em>Manage display</em> page of the entity to which the link is attached (e.g. content type) and choose the display that you want to change. For example, if your link is attached to a content type, visit the  <a href="@content-types">Content types</a> page.',  array('@content-types' => url('admin/structure/types'))) . '</p>';
+      $output .= '<dl>';
+      $output .= '<dt>' . t('Display URL, link text, or both') . '</dt>';
+      $output .= '<dd>' . t('By default, link text is displayed instead of the URL. If you want to display both, choose the appropriate link format from the pull-down menu. If you only want to display the URL even when link text has been submitted, click on the cog icon and check <em>URL only</em>.') . '</dd>';
+      $output .= '<dt>' . t('Add attributes to links') . '</dt>';
+      $output .= '<dd>' . t('If you want to add attributes to links, click on the cog icon, and check the appropriate boxes. Adding <em>rel="nofollow"</em> notifies search engines that links should not be followed.') . '</dd>';
+      $output .= '</dl>';
       return $output;
   }
 }