diff --git a/wp-content/plugins/pubsubhubbub/publisher.php b/wp-content/plugins/pubsubhubbub/pubsubhubbub-php/publisher.php
similarity index 95%
rename from wp-content/plugins/pubsubhubbub/publisher.php
rename to wp-content/plugins/pubsubhubbub/pubsubhubbub-php/publisher.php
index 1d8e7a65b917532a342f078d1e4b21549c713b5f..3bc5012105469db7ec410f54ec2fc97a0ed52973 100644
--- a/wp-content/plugins/pubsubhubbub/publisher.php
+++ b/wp-content/plugins/pubsubhubbub/pubsubhubbub-php/publisher.php
@@ -1,7 +1,7 @@
 <?php
 // a PHP client library for pubsubhubbub
 // as defined at http://code.google.com/p/pubsubhubbub/
-// written by Josh Fraser | joshfraser.com | josh@eventvue.com
+// written by Josh Fraser | joshfraser.com | joshfraz@gmail.com
 // modified by Matthias Pfefferle | notizblog.org | matthias@pfefferle.org
 // Released under Apache License 2.0
 
@@ -68,6 +68,7 @@ class PshbPublisher {
     $options = array(CURLOPT_URL => $url,
                      CURLOPT_POST => true,
                      CURLOPT_POSTFIELDS => $post_string,
+                     CURLOPT_RETURNTRANSFER => true,
                      CURLOPT_USERAGENT => "PubSubHubbub-Publisher-PHP/1.0");
 
     $ch = curl_init();
@@ -86,4 +87,4 @@ class PshbPublisher {
     return false;
   }
 }
-?>
\ No newline at end of file
+?>
diff --git a/wp-content/plugins/pubsubhubbub/subscriber.php b/wp-content/plugins/pubsubhubbub/pubsubhubbub-php/subscriber.php
old mode 100755
new mode 100644
similarity index 97%
rename from wp-content/plugins/pubsubhubbub/subscriber.php
rename to wp-content/plugins/pubsubhubbub/pubsubhubbub-php/subscriber.php
index edc52294c17ebae5b9f17bf903d268135e4cd9cd..55d563af2a11bd7d85a5328fa0f31886f2346a48
--- a/wp-content/plugins/pubsubhubbub/subscriber.php
+++ b/wp-content/plugins/pubsubhubbub/pubsubhubbub-php/subscriber.php
@@ -1,7 +1,7 @@
 <?php
 // a PHP client library for pubsubhubbub
 // as defined at http://code.google.com/p/pubsubhubbub/
-// written by Josh Fraser | joshfraser.com | josh@eventvue.com
+// written by Josh Fraser | joshfraser.com | joshfraz@gmail.com
 // modified by Matthias Pfefferle | notizblog.org | matthias@pfefferle.org
 // Released under Apache License 2.0
 
@@ -17,7 +17,7 @@ class PshbSubscriber {
   protected $callback_url;
   protected $credentials;
   // accepted values are "async" and "sync"
-  protected $verify = "sync";
+  protected $verify = "async";
   protected $verify_token;
   protected $lease_seconds;
 
@@ -104,7 +104,7 @@ class PshbSubscriber {
     return false;
   }
 
-  //
+  // discover the hub url
   public function find_hub($topic_url) {
     $self = $topic_url;
     $xml = $this->http($topic_url);
@@ -145,6 +145,7 @@ class PshbSubscriber {
     $this->topic_url = $self;
   }
   
+  // getter
   public function get_topic_url() {
     return $this->topic_url;
   }
diff --git a/wp-content/plugins/pubsubhubbub/pubsubhubbub.php b/wp-content/plugins/pubsubhubbub/pubsubhubbub.php
index bd7d62cb9db7cbc924ee83db308f60a29e18db95..528b294d9b3b2e4bae123c60f382bdf2f8b7c74a 100755
--- a/wp-content/plugins/pubsubhubbub/pubsubhubbub.php
+++ b/wp-content/plugins/pubsubhubbub/pubsubhubbub.php
@@ -3,14 +3,14 @@
 Plugin Name: PubSubHubbub
 Plugin URI: http://code.google.com/p/pubsubhubbub/
 Description: A better way to tell the world when your blog is updated.
-Version: 1.6
+Version: 1.6.3
 Author: Josh Fraser, Matthias Pfefferle
-Author Email: josh@eventvue.com
+Author Email: joshfraz@gmail.com
 Author URI: http://wordpress.org/extend/plugins/pubsubhubbub/
 */
 
-include("publisher.php");
-include("subscriber.php");
+include("pubsubhubbub-php/publisher.php");
+include("pubsubhubbub-php/subscriber.php");
 
 // the ability for other plugins to hook into the PuSH code based on a
 // fix by Stephen Paul Weber (http://singpolyma.net)
@@ -86,6 +86,7 @@ function pshb_publish_post($post_id) {
 
   return $post_id;
 }
+add_action('publish_post', 'pshb_publish_post');
 
 // function that is called whenever a new comment is published
 function pshb_publish_comment($comment_id) {
@@ -100,13 +101,18 @@ function pshb_publish_comment($comment_id) {
 
   return $comment_id;
 }
+add_action('comment_post', 'pshb_publish_comment');
 
+// to our atom feed
 function pshb_add_atom_link_tag() {
   $hub_urls = pshb_get_pubsub_endpoints();
   foreach ($hub_urls as $hub_url) {
     echo '<link rel="hub" href="'.$hub_url.'" />';
   }
 }
+add_action('atom_head', 'pshb_add_atom_link_tag');
+add_action('comments_atom_head', 'pshb_add_atom_link_tag');
+//add_action('wp_head', 'pshb_add_atom_link_tag');
 
 function pshb_add_rss_link_tag() {
   $hub_urls = pshb_get_pubsub_endpoints();
@@ -114,16 +120,23 @@ function pshb_add_rss_link_tag() {
     echo '<atom:link rel="hub" href="'.$hub_url.'"/>';
   }
 }
+add_action('rss_head', 'pshb_add_rss_link_tag');
+add_action('rdf_header', 'pshb_add_rss_link_tag');
+add_action('rss2_head', 'pshb_add_rss_link_tag');
+add_action('commentsrss2_head', 'pshb_add_rss_link_tag');
 
 function pshb_add_rdf_ns_link() {
   echo 'xmlns:atom="http://www.w3.org/2005/Atom"';
 }
+add_action('rdf_ns', 'pshb_add_rdf_ns_link');
+
 
 // hack to add the atom definition to the RSS feed
 // start capturing the feed output.  this is run at priority 9 (before output)
 function pshb_start_rss_link_tag() {
   ob_start();
 }
+add_action('do_feed_rss', 'pshb_start_rss_link_tag', 9); // run before output
 
 // this is run at priority 11 (after output)
 // add in the xmlns atom definition link
@@ -134,11 +147,13 @@ function pshb_end_rss_link_tag() {
   // change <rss version="X.XX"> to <rss version="X.XX" xmlns:atom="http://www.w3.org/2005/Atom">
   echo preg_replace($pattern, $replacement, $feed);
 }
+add_action('do_feed_rss', 'pshb_end_rss_link_tag', 11); // run after output
 
 // add a link to our settings page in the WP menu
 function pshb_add_plugin_menu() {
   add_options_page('PubSubHubbub Settings', 'PubSubHubbub', 'administrator', __FILE__, 'pshb_add_settings_page');
 }
+add_action('admin_menu', 'pshb_add_plugin_menu');
 
 // get the endpoints from the wordpress options table
 // valid parameters are "publish" or "subscribe"
@@ -149,7 +164,7 @@ function pshb_get_pubsub_endpoints() {
   // if no values have been set, revert to the defaults (pubsubhubbub on app engine & superfeedr)
   if (!$endpoints) {
     $hub_urls[] = "http://pubsubhubbub.appspot.com";
-    $hub_urls[] = "http://superfeedr.com/hubbub";
+    $hub_urls[] = "http://pubsubhubbub.superfeedr.com";
   }
 
   // clean out any blank values
@@ -221,6 +236,7 @@ function pshb_add_settings_link( $links, $file ) {
   }
   return $links;
 }
+add_filter('plugin_action_links', 'pshb_add_settings_link', 10, 2);
 
 // adds some query vars
 function pshb_query_var($vars) {
@@ -231,6 +247,7 @@ function pshb_query_var($vars) {
   $vars[] = 'pubsubhubbub';
   return $vars;
 }
+add_filter('query_vars', 'pshb_query_var');
 
 // parses the request
 function pshb_parse_request() {
@@ -259,6 +276,7 @@ function pshb_parse_request() {
     exit;
   }
 }
+add_action('parse_request', 'pshb_parse_request');
 
 // remove something from the option list
 function pshb_remove_from_option($url, $option) {
@@ -279,47 +297,18 @@ function pshb_template_redirect() {
       || (is_feed() && !is_comment_feed() && !is_archive())) {
     $hub_urls = pshb_get_pubsub_endpoints();
     foreach ($hub_urls as $hub_url) {
-      header('Link: <'.$hub_url.'>; rel=hub');
+      header('Link: <'.$hub_url.'>; rel=hub', false);
     }
-    header('Link: <'.( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'].'>; rel=self');
+    header('Link: <'.( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'].'>; rel=self', false);
   }
 }
-
-// attach the handler that gets called every time you publish a post
-add_action('publish_post', 'pshb_publish_post');
-// attach the handler that gets called every time you get a comment
-add_action('comment_post', 'pshb_publish_comment');
-// add the link to our settings page in the WP menu structure
-add_action('admin_menu', 'pshb_add_plugin_menu');
+add_action('template_redirect', 'pshb_template_redirect');
 
 // keep WPMU happy
-add_action('admin_init', 'pshb_register_my_settings');
 function pshb_register_my_settings() {
   register_setting('my_settings_group','pubsub_endpoints');
 }
-
-// add the link tag that points to the hub in the header of our template...
-
-// to our atom feed
-add_action('atom_head', 'pshb_add_atom_link_tag');
-add_action('comments_atom_head', 'pshb_add_atom_link_tag');
-// to our RSS 0.92 feed (requires a bit of a hack to include the ATOM namespace definition)
-add_action('do_feed_rss', 'pshb_start_rss_link_tag', 9); // run before output
-add_action('do_feed_rss', 'pshb_end_rss_link_tag', 11); // run after output
-add_action('rss_head', 'pshb_add_rss_link_tag');
-// to our RDF / RSS 1 feed
-add_action('rdf_ns', 'pshb_add_rdf_ns_link');
-add_action('rdf_header', 'pshb_add_rss_link_tag');
-// to our RSS 2 feed
-add_action('rss2_head', 'pshb_add_rss_link_tag');
-add_action('commentsrss2_head', 'pshb_add_rss_link_tag');
-// to our main HTML header -- not sure if we want to include this long-term or not.
-add_action('wp_head', 'pshb_add_atom_link_tag');
-add_action('template_redirect', 'pshb_template_redirect');
-
-add_filter('plugin_action_links', 'pshb_add_settings_link', 10, 2);
-add_filter('query_vars', 'pshb_query_var');
-add_action('parse_request', 'pshb_parse_request');
+add_action('admin_init', 'pshb_register_my_settings');
 
 /**
  * beeing backwards compatible
diff --git a/wp-content/plugins/pubsubhubbub/readme.txt b/wp-content/plugins/pubsubhubbub/readme.txt
index 930f6cbf8b151f3941d40d853d4877bdf945198b..9d464ce0a78582f7fa7e72e0c160500f718227a5 100644
--- a/wp-content/plugins/pubsubhubbub/readme.txt
+++ b/wp-content/plugins/pubsubhubbub/readme.txt
@@ -1,20 +1,21 @@
 === Plugin Name ===
 Contributors: joshfraz, pfefferle
-Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=5426516
 Tags: pubsubhubbub
 Requires at least: 2.5
-Tested up to: 3.3
-Stable tag: 1.6
+Tested up to: 3.5.1
+Stable tag: 1.6.3
 
 A better way to tell the world when your blog is updated.
 
 == Description ==
 
-This [PubSubHubbub](http://code.google.com/p/pubsubhubbub/ "PubSubHubbub") plugin is a simple way to let people know in real-time when your blog is updated.  PubSubHubbub is quickly gaining adoption and is already being used by Google Reader, Google Alerts, FriendFeed and more.
+This [PubSubHubbub](http://code.google.com/p/pubsubhubbub/ "PubSubHubbub") plugin is a simple way to let people know in real-time when your blog is updated.  PubSubHubbub is widely adopted and is used by Google Reader, Google Alerts and many other services.
 
 This plugin:
 
-* Now supports multiple hubs!
+* Sends realtime notifications when you update your blog
+* Supports multi-user installations (Wordpress MU)
+* Supports multiple hubs
 * Supports all of the feed formats used by WordPress, not just ATOM and RSS2
 * Announces which hubs you are using by adding `<link rel="hub" ...>` declarations to your template header and ATOM feed
 * Adds `<atom:link rel="hub" ...>` to your RSS feeds along with the necessary XMLNS declaration for RSS 0.92/1.0
@@ -22,7 +23,7 @@ This plugin:
 By default this plugin will ping the following hubs:
 
 * [Demo hub on Google App Engine](http://pubsubhubbub.appspot.com "Demo hub on Google App Engine")
-* [SuperFeedr](http://superfeedr.com/hubbub "SuperFeedr")
+* [SuperFeedr](http://pubsubhubbub.superfeedr.com "SuperFeedr")
 
 Please contact me if you operate a hub that you would like to be included as a default option.
 
@@ -49,6 +50,13 @@ and [Matthias Pfefferle](http://pfefferle.org "Matthias Pfefferle") at [Notizblo
 
 == Changelog ==
 
+= 1.6.3 =
+* Update hub URL for SuperFeedr (now pubsubhubbub.superfeedr.com)
+* Update credits and documentation
+
+= 1.6.1 =
+* Bug fixes
+
 = 1.6 =
 * Added comment-feed support 
 * Added simple subscriber functions