diff --git a/actions/block.php b/actions/block.php
index 11565e20c5..93f8ec9370 100644
--- a/actions/block.php
+++ b/actions/block.php
@@ -87,13 +87,15 @@ class BlockAction extends ProfileFormAction
     {
         if ($_SERVER['REQUEST_METHOD'] == 'POST') {
             if ($this->arg('no')) {
-                $this->returnToArgs();
+                $this->returnToPrevious();
             } elseif ($this->arg('yes')) {
                 $this->handlePost();
-                $this->returnToArgs();
+                $this->returnToPrevious();
             } else {
                 $this->showPage();
             }
+        } else {
+            $this->showPage();
         }
     }
 
@@ -118,6 +120,12 @@ class BlockAction extends ProfileFormAction
      */
     function areYouSureForm()
     {
+        // @fixme if we ajaxify the confirmation form, skip the preview on ajax hits
+        $profile = new ArrayWrapper(array($this->profile));
+        $preview = new ProfileList($profile, $this);
+        $preview->show();
+
+
         $id = $this->profile->id;
         $this->elementStart('form', array('id' => 'block-' . $id,
                                            'method' => 'post',
@@ -187,4 +195,38 @@ class BlockAction extends ProfileFormAction
         $this->autofocus('form_action-yes');
     }
 
+    /**
+     * Override for form session token checks; on our first hit we're just
+     * requesting confirmation, which doesn't need a token. We need to be
+     * able to take regular GET requests from email!
+     * 
+     * @throws ClientException if token is bad on POST request or if we have
+     *         confirmation parameters which could trigger something.
+     */
+    function checkSessionToken()
+    {
+        if ($_SERVER['REQUEST_METHOD'] == 'POST' ||
+            $this->arg('yes') ||
+            $this->arg('no')) {
+
+            return parent::checkSessionToken();
+        }
+    }
+
+    /**
+     * If we reached this form without returnto arguments, return to the
+     * current user's subscription list.
+     * 
+     * @return string URL
+     */
+    function defaultReturnTo()
+    {
+        $user = common_current_user();
+        if ($user) {
+            return common_local_url('subscribers',
+                                    array('nickname' => $user->nickname));
+        } else {
+            return common_local_url('public');
+        }
+    }
 }
diff --git a/actions/deleteuser.php b/actions/deleteuser.php
index 1c1f19b0e6..02ded68b31 100644
--- a/actions/deleteuser.php
+++ b/actions/deleteuser.php
@@ -92,10 +92,10 @@ class DeleteuserAction extends ProfileFormAction
     {
         if ($_SERVER['REQUEST_METHOD'] == 'POST') {
             if ($this->arg('no')) {
-                $this->returnToArgs();
+                $this->returnToPrevious();
             } elseif ($this->arg('yes')) {
                 $this->handlePost();
-                $this->returnToArgs();
+                $this->returnToPrevious();
             } else {
                 $this->showPage();
             }
diff --git a/actions/groupblock.php b/actions/groupblock.php
index e52db6e111..39f783397a 100644
--- a/actions/groupblock.php
+++ b/actions/groupblock.php
@@ -117,7 +117,7 @@ class GroupblockAction extends RedirectingAction
         parent::handle($args);
         if ($_SERVER['REQUEST_METHOD'] == 'POST') {
             if ($this->arg('no')) {
-                $this->returnToArgs();
+                $this->returnToPrevious();
             } elseif ($this->arg('yes')) {
                 $this->blockProfile();
             } elseif ($this->arg('blockto')) {
@@ -207,7 +207,7 @@ class GroupblockAction extends RedirectingAction
             return false;
         }
         
-        $this->returnToArgs();
+        $this->returnToPrevious();
     }
 
     /**
diff --git a/db/notice_source.sql b/db/notice_source.sql
index f9c5256791..fbcdd6568e 100644
--- a/db/notice_source.sql
+++ b/db/notice_source.sql
@@ -54,6 +54,7 @@ VALUES
     ('tr.im','tr.im','http://tr.im/', now()),
     ('triklepost', 'Tricklepost', 'http://github.com/zcopley/tricklepost/tree/master', now()),
     ('tweenky','Tweenky','http://beta.tweenky.com/', now()),
+    ('TweetDeck', 'TweetDeck', 'http://www.tweetdeck.com/', now()),
     ('twhirl','Twhirl','http://www.twhirl.org/', now()),
     ('twibble','twibble','http://www.twibble.de/', now()),
     ('Twidge','Twidge','http://software.complete.org/twidge', now()),
diff --git a/lib/default.php b/lib/default.php
index ab5f294ded..950c6018d8 100644
--- a/lib/default.php
+++ b/lib/default.php
@@ -304,4 +304,7 @@ $default =
         array('subscribers' => true,
               'members' => true,
               'peopletag' => true),
+        'http' => // HTTP client settings when contacting other sites
+        array('ssl_cafile' => false // To enable SSL cert validation, point to a CA bundle (eg '/usr/lib/ssl/certs/ca-certificates.crt')
+              ),
         );
diff --git a/lib/httpclient.php b/lib/httpclient.php
index 384626ae06..b69f718e5f 100644
--- a/lib/httpclient.php
+++ b/lib/httpclient.php
@@ -132,7 +132,19 @@ class HTTPClient extends HTTP_Request2
         // ought to be investigated to see if we can handle
         // it gracefully in that case as well.
         $this->config['protocol_version'] = '1.0';
-        
+
+        // Default state of OpenSSL seems to have no trusted
+        // SSL certificate authorities, which breaks hostname
+        // verification and means we have a hard time communicating
+        // with other sites' HTTPS interfaces.
+        //
+        // Turn off verification unless we've configured a CA bundle.
+        if (common_config('http', 'ssl_cafile')) {
+            $this->config['ssl_cafile'] = common_config('http', 'ssl_cafile');
+        } else {
+            $this->config['ssl_verify_peer'] = false;
+        }
+
         parent::__construct($url, $method, $config);
         $this->setHeader('User-Agent', $this->userAgent());
     }
diff --git a/lib/mail.php b/lib/mail.php
index a4065e8d50..ab5742e33d 100644
--- a/lib/mail.php
+++ b/lib/mail.php
@@ -245,6 +245,11 @@ function mail_subscribe_notify_profile($listenee, $other)
                                       $other->getBestName(),
                                       common_config('site', 'name'));
 
+        $blocklink = sprintf(_("If you believe this account is being used abusively, " .
+                               "you can block them from your subscribers list and " .
+                               "report as spam to site administrators at %s"),
+                             common_local_url('block', array('profileid' => $other->id)));
+
         // TRANS: Main body of new-subscriber notification e-mail
         $body = sprintf(_('%1$s is now listening to your notices on %2$s.'."\n\n".
                           "\t".'%3$s'."\n\n".
@@ -264,9 +269,10 @@ function mail_subscribe_notify_profile($listenee, $other)
                         ($other->homepage) ?
                         // TRANS: Profile info line in new-subscriber notification e-mail
                         sprintf(_("Homepage: %s"), $other->homepage) . "\n" : '',
-                        ($other->bio) ?
+                        (($other->bio) ?
                         // TRANS: Profile info line in new-subscriber notification e-mail
-                        sprintf(_("Bio: %s"), $other->bio) . "\n\n" : '',
+                            sprintf(_("Bio: %s"), $other->bio) . "\n" : '') .
+                            "\n\n" . $blocklink . "\n",
                         common_config('site', 'name'),
                         common_local_url('emailsettings'));
 
diff --git a/lib/profileformaction.php b/lib/profileformaction.php
index 0ffafe5fb8..51c89a922e 100644
--- a/lib/profileformaction.php
+++ b/lib/profileformaction.php
@@ -60,7 +60,16 @@ class ProfileFormAction extends RedirectingAction
         $this->checkSessionToken();
 
         if (!common_logged_in()) {
-            $this->clientError(_('Not logged in.'));
+            if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+                $this->clientError(_('Not logged in.'));
+            } else {
+                // Redirect to login.
+                common_set_returnto($this->selfUrl());
+                $user = common_current_user();
+                if (Event::handle('RedirectToLogin', array($this, $user))) {
+                    common_redirect(common_local_url('login'), 303);
+                }
+            }
             return false;
         }
 
@@ -97,7 +106,7 @@ class ProfileFormAction extends RedirectingAction
 
         if ($_SERVER['REQUEST_METHOD'] == 'POST') {
             $this->handlePost();
-            $this->returnToArgs();
+            $this->returnToPrevious();
         }
     }
 
diff --git a/lib/redirectingaction.php b/lib/redirectingaction.php
index f115852742..3a358f891c 100644
--- a/lib/redirectingaction.php
+++ b/lib/redirectingaction.php
@@ -53,12 +53,13 @@ class RedirectingAction extends Action
      * 
      * To be called only after successful processing.
      * 
-     * @fixme rename this -- it obscures Action::returnToArgs() which
-     * returns a list of arguments, and is a bit confusing.
+     * Note: this was named returnToArgs() up through 0.9.2, which
+     * caused problems because there's an Action::returnToArgs()
+     * already which does something different.
      * 
      * @return void
      */
-    function returnToArgs()
+    function returnToPrevious()
     {
         // Now, gotta figure where we go back to
         $action = false;
@@ -77,7 +78,7 @@ class RedirectingAction extends Action
         if ($action) {
             common_redirect(common_local_url($action, $args, $params), 303);
         } else {
-            $url = $this->defaultReturnToUrl();
+            $url = $this->defaultReturnTo();
         }
         common_redirect($url, 303);
     }
diff --git a/lib/router.php b/lib/router.php
index a9d07276f3..afe44f92ad 100644
--- a/lib/router.php
+++ b/lib/router.php
@@ -136,6 +136,11 @@ class Router
                 $m->connect('main/'.$a, array('action' => $a));
             }
 
+            // Also need a block variant accepting ID on URL for mail links
+            $m->connect('main/block/:profileid',
+                        array('action' => 'block'),
+                        array('profileid' => '[0-9]+'));
+
             $m->connect('main/sup/:seconds', array('action' => 'sup'),
                         array('seconds' => '[0-9]+'));
 
diff --git a/lib/util.php b/lib/util.php
index 1e58f960cf..524ce0071d 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -1939,6 +1939,15 @@ function common_url_to_nickname($url)
             $path = preg_replace('@/$@', '', $parts['path']);
             $path = preg_replace('@^/@', '', $path);
             $path = basename($path);
+
+            // Hack for MediaWiki user pages, in the form:
+            // http://example.com/wiki/User:Myname
+            // ('User' may be localized.)
+            if (strpos($path, ':')) {
+                $parts = array_filter(explode(':', $path));
+                $path = $parts[count($parts) - 1];
+            }
+
             if ($path) {
                 return common_nicknamize($path);
             }
diff --git a/plugins/Facebook/facebookutil.php b/plugins/Facebook/facebookutil.php
index 83664995ac..ab2d427264 100644
--- a/plugins/Facebook/facebookutil.php
+++ b/plugins/Facebook/facebookutil.php
@@ -104,9 +104,13 @@ function facebookBroadcastNotice($notice)
 
             $status = "$prefix $notice->content";
 
+            common_debug("FacebookPlugin - checking for publish_stream permission for user $user->id");
+
             $can_publish = $facebook->api_client->users_hasAppPermission('publish_stream',
                                                                          $fbuid);
 
+            common_debug("FacebookPlugin - checking for status_update permission for user $user->id");
+
             $can_update  = $facebook->api_client->users_hasAppPermission('status_update',
                                                                          $fbuid);
             if (!empty($attachments) && $can_publish == 1) {
@@ -114,15 +118,15 @@ function facebookBroadcastNotice($notice)
                 $facebook->api_client->stream_publish($status, $fbattachment,
                                                       null, null, $fbuid);
                 common_log(LOG_INFO,
-                           "Posted notice $notice->id w/attachment " .
+                           "FacebookPlugin - Posted notice $notice->id w/attachment " .
                            "to Facebook user's stream (fbuid = $fbuid).");
             } elseif ($can_update == 1 || $can_publish == 1) {
                 $facebook->api_client->users_setStatus($status, $fbuid, false, true);
                 common_log(LOG_INFO,
-                           "Posted notice $notice->id to Facebook " .
+                           "FacebookPlugin - Posted notice $notice->id to Facebook " .
                            "as a status update (fbuid = $fbuid).");
             } else {
-                $msg = "Not sending notice $notice->id to Facebook " .
+                $msg = "FacebookPlugin - Not sending notice $notice->id to Facebook " .
                   "because user $user->nickname hasn't given the " .
                   'Facebook app \'status_update\' or \'publish_stream\' permission.';
                 common_log(LOG_WARNING, $msg);
@@ -138,7 +142,7 @@ function facebookBroadcastNotice($notice)
 
             $code = $e->getCode();
 
-            $msg = "Facebook returned error code $code: " .
+            $msg = "FacebookPlugin - Facebook returned error code $code: " .
               $e->getMessage() . ' - ' .
               "Unable to update Facebook status (notice $notice->id) " .
               "for $user->nickname (user id: $user->id)!";
diff --git a/plugins/OStatus/lib/discoveryhints.php b/plugins/OStatus/lib/discoveryhints.php
index ca54a0f5f5..34c9be2777 100644
--- a/plugins/OStatus/lib/discoveryhints.php
+++ b/plugins/OStatus/lib/discoveryhints.php
@@ -84,7 +84,7 @@ class DiscoveryHints {
             $hints['fullname'] = implode(' ', $hcard['n']);
         }
 
-        if (array_key_exists('photo', $hcard)) {
+        if (array_key_exists('photo', $hcard) && count($hcard['photo'])) {
             $hints['avatar'] = $hcard['photo'][0];
         }
 
diff --git a/plugins/RequireValidatedEmail/README b/plugins/RequireValidatedEmail/README
index 46ee24d5fe..84b1485b25 100644
--- a/plugins/RequireValidatedEmail/README
+++ b/plugins/RequireValidatedEmail/README
@@ -12,6 +12,20 @@ registered prior to that timestamp.
   addPlugin('RequireValidatedEmail',
             array('grandfatherCutoff' => 'Dec 7, 2009');
 
+You can also exclude the validation checks from OpenID accounts
+connected to a trusted provider, by providing a list of regular
+expressions to match their provider URLs.
+
+For example, to trust WikiHow and Wikipedia users:
+
+  addPlugin('RequireValidatedEmailPlugin', array(
+     'trustedOpenIDs' => array(
+         '!^http://\w+\.wikihow\.com/!',
+         '!^http://\w+\.wikipedia\.org/!',
+     ),
+  ));
+
+
 
 Todo:
 * add a more visible indicator that validation is still outstanding
diff --git a/plugins/RequireValidatedEmail/RequireValidatedEmailPlugin.php b/plugins/RequireValidatedEmail/RequireValidatedEmailPlugin.php
index ccefa14f62..009a2f78e1 100644
--- a/plugins/RequireValidatedEmail/RequireValidatedEmailPlugin.php
+++ b/plugins/RequireValidatedEmail/RequireValidatedEmailPlugin.php
@@ -37,6 +37,20 @@ class RequireValidatedEmailPlugin extends Plugin
     // without the validation requirement.
     public $grandfatherCutoff=null;
 
+    // If OpenID plugin is installed, users with a verified OpenID
+    // association whose provider URL matches one of these regexes
+    // will be considered to be sufficiently valid for our needs.
+    //
+    // For example, to trust WikiHow and Wikipedia OpenID users:
+    //
+    // addPlugin('RequireValidatedEmailPlugin', array(
+    //    'trustedOpenIDs' => array(
+    //        '!^http://\w+\.wikihow\.com/!',
+    //        '!^http://\w+\.wikipedia\.org/!',
+    //    ),
+    // ));
+    public $trustedOpenIDs=array();
+
     function __construct()
     {
         parent::__construct();
@@ -90,13 +104,17 @@ class RequireValidatedEmailPlugin extends Plugin
      */
     protected function validated($user)
     {
-        if ($this->grandfathered($user)) {
-            return true;
-        }
-
         // The email field is only stored after validation...
         // Until then you'll find them in confirm_address.
-        return !empty($user->email);
+        $knownGood = !empty($user->email) ||
+                     $this->grandfathered($user) ||
+                     $this->hasTrustedOpenID($user);
+
+        // Give other plugins a chance to override, if they can validate
+        // that somebody's ok despite a non-validated email.
+        Event::handle('RequireValidatedEmailPlugin_Override', array($user, &$knownGood));
+
+        return $knownGood;
     }
 
     /**
@@ -118,6 +136,28 @@ class RequireValidatedEmailPlugin extends Plugin
         return false;
     }
 
+    /**
+     * Override for RequireValidatedEmail plugin. If we have a user who's
+     * not validated an e-mail, but did come from a trusted provider,
+     * we'll consider them ok.
+     */
+    function hasTrustedOpenID($user)
+    {
+        if ($this->trustedOpenIDs && class_exists('User_openid')) {
+            foreach ($this->trustedOpenIDs as $regex) {
+                $oid = new User_openid();
+                $oid->user_id = $user->id;
+                $oid->find();
+                while ($oid->fetch()) {
+                    if (preg_match($regex, $oid->canonical)) {
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
     function onPluginVersion(&$versions)
     {
         $versions[] = array('name' => 'Require Validated Email',
diff --git a/plugins/UserFlag/clearflag.php b/plugins/UserFlag/clearflag.php
index bd6732e2da..f032527ed6 100644
--- a/plugins/UserFlag/clearflag.php
+++ b/plugins/UserFlag/clearflag.php
@@ -81,7 +81,7 @@ class ClearflagAction extends ProfileFormAction
         if ($_SERVER['REQUEST_METHOD'] == 'POST') {
             $this->handlePost();
             if (!$this->boolean('ajax')) {
-                $this->returnToArgs();
+                $this->returnToPrevious();
             }
         }
     }
diff --git a/plugins/UserFlag/flagprofile.php b/plugins/UserFlag/flagprofile.php
index 2d0f0abb90..018c1e8ac9 100644
--- a/plugins/UserFlag/flagprofile.php
+++ b/plugins/UserFlag/flagprofile.php
@@ -87,7 +87,7 @@ class FlagprofileAction extends ProfileFormAction
         if ($_SERVER['REQUEST_METHOD'] == 'POST') {
             $this->handlePost();
             if (!$this->boolean('ajax')) {
-                $this->returnToArgs();
+                $this->returnToPrevious();
             }
         }
     }