diff --git a/EVENTS.txt b/EVENTS.txt
index 6719ba737a..59baf51ce6 100644
--- a/EVENTS.txt
+++ b/EVENTS.txt
@@ -1057,3 +1057,9 @@ StartCloseNoticeListItemElement: Before the closing </li> of a notice list eleme
 
 EndCloseNoticeListItemElement: After the closing </li> of a notice list element
 - $nli: The notice list item being shown
+
+StartGroupEditFormData: Beginning the group edit form entries
+- $form: The form widget being shown
+
+EndGroupEditFormData: Ending the group edit form entries
+- $form: The form widget being shown
diff --git a/actions/editgroup.php b/actions/editgroup.php
index ab4dbb2836..0e04170051 100644
--- a/actions/editgroup.php
+++ b/actions/editgroup.php
@@ -177,116 +177,121 @@ class EditgroupAction extends GroupDesignAction
             return;
         }
 
-        $nickname    = Nickname::normalize($this->trimmed('nickname'));
-        $fullname    = $this->trimmed('fullname');
-        $homepage    = $this->trimmed('homepage');
-        $description = $this->trimmed('description');
-        $location    = $this->trimmed('location');
-        $aliasstring = $this->trimmed('aliases');
+        if (Event::handle('StartGroupSaveForm', array($this))) {
 
-        if ($this->nicknameExists($nickname)) {
-            // TRANS: Group edit form validation error.
-            $this->showForm(_('Nickname already in use. Try another one.'));
-            return;
-        } else if (!User_group::allowedNickname($nickname)) {
-            // TRANS: Group edit form validation error.
-            $this->showForm(_('Not a valid nickname.'));
-            return;
-        } else if (!is_null($homepage) && (strlen($homepage) > 0) &&
-                   !Validate::uri($homepage,
-                                  array('allowed_schemes' =>
-                                        array('http', 'https')))) {
-            // TRANS: Group edit form validation error.
-            $this->showForm(_('Homepage is not a valid URL.'));
-            return;
-        } else if (!is_null($fullname) && mb_strlen($fullname) > 255) {
-            // TRANS: Group edit form validation error.
-            $this->showForm(_('Full name is too long (maximum 255 characters).'));
-            return;
-        } else if (User_group::descriptionTooLong($description)) {
-            $this->showForm(sprintf(
+            $nickname    = Nickname::normalize($this->trimmed('nickname'));
+            $fullname    = $this->trimmed('fullname');
+            $homepage    = $this->trimmed('homepage');
+            $description = $this->trimmed('description');
+            $location    = $this->trimmed('location');
+            $aliasstring = $this->trimmed('aliases');
+
+            if ($this->nicknameExists($nickname)) {
                 // TRANS: Group edit form validation error.
-                _m('Description is too long (maximum %d character).',
-                  'Description is too long (maximum %d characters).',
-                  User_group::maxDescription()),
+                $this->showForm(_('Nickname already in use. Try another one.'));
+                return;
+            } else if (!User_group::allowedNickname($nickname)) {
+                // TRANS: Group edit form validation error.
+                $this->showForm(_('Not a valid nickname.'));
+                return;
+            } else if (!is_null($homepage) && (strlen($homepage) > 0) &&
+                       !Validate::uri($homepage,
+                                      array('allowed_schemes' =>
+                                            array('http', 'https')))) {
+                // TRANS: Group edit form validation error.
+                $this->showForm(_('Homepage is not a valid URL.'));
+                return;
+            } else if (!is_null($fullname) && mb_strlen($fullname) > 255) {
+                // TRANS: Group edit form validation error.
+                $this->showForm(_('Full name is too long (maximum 255 characters).'));
+                return;
+            } else if (User_group::descriptionTooLong($description)) {
+                $this->showForm(sprintf(
+                                    // TRANS: Group edit form validation error.
+                                    _m('Description is too long (maximum %d character).',
+                                       'Description is too long (maximum %d characters).',
+                                       User_group::maxDescription()),
                                     User_group::maxDescription()));
-            return;
-        } else if (!is_null($location) && mb_strlen($location) > 255) {
-            // TRANS: Group edit form validation error.
-            $this->showForm(_('Location is too long (maximum 255 characters).'));
-            return;
-        }
-
-        if (!empty($aliasstring)) {
-            $aliases = array_map('common_canonical_nickname', array_unique(preg_split('/[\s,]+/', $aliasstring)));
-        } else {
-            $aliases = array();
-        }
-
-        if (count($aliases) > common_config('group', 'maxaliases')) {
-            // TRANS: Group edit form validation error.
-            // TRANS: %d is the maximum number of allowed aliases.
-            $this->showForm(sprintf(_m('Too many aliases! Maximum %d allowed.',
-                                       'Too many aliases! Maximum %d allowed.',
-                                       common_config('group', 'maxaliases')),
-                                    common_config('group', 'maxaliases')));
-            return;
-        }
-
-        foreach ($aliases as $alias) {
-            if (!Nickname::isValid($alias)) {
+                return;
+            } else if (!is_null($location) && mb_strlen($location) > 255) {
                 // TRANS: Group edit form validation error.
-                $this->showForm(sprintf(_('Invalid alias: "%s"'), $alias));
+                $this->showForm(_('Location is too long (maximum 255 characters).'));
                 return;
             }
-            if ($this->nicknameExists($alias)) {
+
+            if (!empty($aliasstring)) {
+                $aliases = array_map('common_canonical_nickname', array_unique(preg_split('/[\s,]+/', $aliasstring)));
+            } else {
+                $aliases = array();
+            }
+
+            if (count($aliases) > common_config('group', 'maxaliases')) {
                 // TRANS: Group edit form validation error.
-                $this->showForm(sprintf(_('Alias "%s" already in use. Try another one.'),
-                                        $alias));
+                // TRANS: %d is the maximum number of allowed aliases.
+                $this->showForm(sprintf(_m('Too many aliases! Maximum %d allowed.',
+                                           'Too many aliases! Maximum %d allowed.',
+                                           common_config('group', 'maxaliases')),
+                                        common_config('group', 'maxaliases')));
                 return;
             }
-            // XXX assumes alphanum nicknames
-            if (strcmp($alias, $nickname) == 0) {
-                // TRANS: Group edit form validation error.
-                $this->showForm(_('Alias can\'t be the same as nickname.'));
-                return;
+
+            foreach ($aliases as $alias) {
+                if (!Nickname::isValid($alias)) {
+                    // TRANS: Group edit form validation error.
+                    $this->showForm(sprintf(_('Invalid alias: "%s"'), $alias));
+                    return;
+                }
+                if ($this->nicknameExists($alias)) {
+                    // TRANS: Group edit form validation error.
+                    $this->showForm(sprintf(_('Alias "%s" already in use. Try another one.'),
+                                            $alias));
+                    return;
+                }
+                // XXX assumes alphanum nicknames
+                if (strcmp($alias, $nickname) == 0) {
+                    // TRANS: Group edit form validation error.
+                    $this->showForm(_('Alias can\'t be the same as nickname.'));
+                    return;
+                }
             }
+
+            $this->group->query('BEGIN');
+
+            $orig = clone($this->group);
+
+            $this->group->nickname    = $nickname;
+            $this->group->fullname    = $fullname;
+            $this->group->homepage    = $homepage;
+            $this->group->description = $description;
+            $this->group->location    = $location;
+            $this->group->mainpage    = common_local_url('showgroup', array('nickname' => $nickname));
+
+            $result = $this->group->update($orig);
+
+            if (!$result) {
+                common_log_db_error($this->group, 'UPDATE', __FILE__);
+                // TRANS: Server error displayed when editing a group fails.
+                $this->serverError(_('Could not update group.'));
+            }
+
+            $result = $this->group->setAliases($aliases);
+
+            if (!$result) {
+                // TRANS: Server error displayed when group aliases could not be added.
+                $this->serverError(_('Could not create aliases.'));
+            }
+
+            if ($nickname != $orig->nickname) {
+                common_log(LOG_INFO, "Saving local group info.");
+                $local = Local_group::staticGet('group_id', $this->group->id);
+                $local->setNickname($nickname);
+            }
+
+            $this->group->query('COMMIT');
+
+            Event::handle('EndGroupSaveForm', array($this));
         }
 
-        $this->group->query('BEGIN');
-
-        $orig = clone($this->group);
-
-        $this->group->nickname    = $nickname;
-        $this->group->fullname    = $fullname;
-        $this->group->homepage    = $homepage;
-        $this->group->description = $description;
-        $this->group->location    = $location;
-        $this->group->mainpage    = common_local_url('showgroup', array('nickname' => $nickname));
-
-        $result = $this->group->update($orig);
-
-        if (!$result) {
-            common_log_db_error($this->group, 'UPDATE', __FILE__);
-            // TRANS: Server error displayed when editing a group fails.
-            $this->serverError(_('Could not update group.'));
-        }
-
-        $result = $this->group->setAliases($aliases);
-
-        if (!$result) {
-            // TRANS: Server error displayed when group aliases could not be added.
-            $this->serverError(_('Could not create aliases.'));
-        }
-
-        if ($nickname != $orig->nickname) {
-            common_log(LOG_INFO, "Saving local group info.");
-            $local = Local_group::staticGet('group_id', $this->group->id);
-            $local->setNickname($nickname);
-        }
-
-        $this->group->query('COMMIT');
-
         if ($this->group->nickname != $orig->nickname) {
             common_redirect(common_local_url('editgroup',
                                              array('nickname' => $nickname)),
diff --git a/lib/groupeditform.php b/lib/groupeditform.php
index cc25f06886..8e4519267b 100644
--- a/lib/groupeditform.php
+++ b/lib/groupeditform.php
@@ -147,51 +147,54 @@ class GroupEditForm extends Form
         }
 
         $this->out->elementStart('ul', 'form_data');
-        $this->out->elementStart('li');
-        $this->out->hidden('groupid', $id);
-        $this->out->input('nickname', _('Nickname'),
-                          ($this->out->arg('nickname')) ? $this->out->arg('nickname') : $nickname,
-                          _('1-64 lowercase letters or numbers, no punctuation or spaces'));
-        $this->out->elementEnd('li');
-        $this->out->elementStart('li');
-        $this->out->input('fullname', _('Full name'),
-                          ($this->out->arg('fullname')) ? $this->out->arg('fullname') : $fullname);
-        $this->out->elementEnd('li');
-        $this->out->elementStart('li');
-        $this->out->input('homepage', _('Homepage'),
-                          ($this->out->arg('homepage')) ? $this->out->arg('homepage') : $homepage,
-                          _('URL of the homepage or blog of the group or topic.'));
-        $this->out->elementEnd('li');
-        $this->out->elementStart('li');
-        $desclimit = User_group::maxDescription();
-        if ($desclimit == 0) {
-            $descinstr = _('Describe the group or topic');
-        } else {
-            $descinstr = sprintf(_m('Describe the group or topic in %d character or less',
-                                    'Describe the group or topic in %d characters or less',
-                                    $desclimit),
-                                 $desclimit);
-        }
-        $this->out->textarea('description', _('Description'),
-                             ($this->out->arg('description')) ? $this->out->arg('description') : $description,
-                             $descinstr);
-        $this->out->elementEnd('li');
-        $this->out->elementStart('li');
-        $this->out->input('location', _('Location'),
-                          ($this->out->arg('location')) ? $this->out->arg('location') : $location,
-                          _('Location for the group, if any, like "City, State (or Region), Country".'));
-        $this->out->elementEnd('li');
-        if (common_config('group', 'maxaliases') > 0) {
-            $aliases = (empty($this->group)) ? array() : $this->group->getAliases();
+        if (Event::handle('StartGroupEditFormData', array($this))) {
             $this->out->elementStart('li');
-            $this->out->input('aliases', _('Aliases'),
-                              ($this->out->arg('aliases')) ? $this->out->arg('aliases') :
-                              (!empty($aliases)) ? implode(' ', $aliases) : '',
-                              sprintf(_m('Extra nicknames for the group, separated with commas or spaces. Maximum %d alias allowed.',
-                                         'Extra nicknames for the group, separated with commas or spaces. Maximum %d aliases allowed.',
-                                         common_config('group', 'maxaliases')),
-                                      common_config('group', 'maxaliases')));;
+            $this->out->hidden('groupid', $id);
+            $this->out->input('nickname', _('Nickname'),
+                              ($this->out->arg('nickname')) ? $this->out->arg('nickname') : $nickname,
+                              _('1-64 lowercase letters or numbers, no punctuation or spaces'));
             $this->out->elementEnd('li');
+            $this->out->elementStart('li');
+            $this->out->input('fullname', _('Full name'),
+                              ($this->out->arg('fullname')) ? $this->out->arg('fullname') : $fullname);
+            $this->out->elementEnd('li');
+            $this->out->elementStart('li');
+            $this->out->input('homepage', _('Homepage'),
+                              ($this->out->arg('homepage')) ? $this->out->arg('homepage') : $homepage,
+                              _('URL of the homepage or blog of the group or topic.'));
+            $this->out->elementEnd('li');
+            $this->out->elementStart('li');
+            $desclimit = User_group::maxDescription();
+            if ($desclimit == 0) {
+                $descinstr = _('Describe the group or topic');
+            } else {
+                $descinstr = sprintf(_m('Describe the group or topic in %d character or less',
+                                        'Describe the group or topic in %d characters or less',
+                                        $desclimit),
+                                     $desclimit);
+            }
+            $this->out->textarea('description', _('Description'),
+                                 ($this->out->arg('description')) ? $this->out->arg('description') : $description,
+                                 $descinstr);
+            $this->out->elementEnd('li');
+            $this->out->elementStart('li');
+            $this->out->input('location', _('Location'),
+                              ($this->out->arg('location')) ? $this->out->arg('location') : $location,
+                              _('Location for the group, if any, like "City, State (or Region), Country".'));
+            $this->out->elementEnd('li');
+            if (common_config('group', 'maxaliases') > 0) {
+                $aliases = (empty($this->group)) ? array() : $this->group->getAliases();
+                $this->out->elementStart('li');
+                $this->out->input('aliases', _('Aliases'),
+                                  ($this->out->arg('aliases')) ? $this->out->arg('aliases') :
+                                  (!empty($aliases)) ? implode(' ', $aliases) : '',
+                                  sprintf(_m('Extra nicknames for the group, separated with commas or spaces. Maximum %d alias allowed.',
+                                             'Extra nicknames for the group, separated with commas or spaces. Maximum %d aliases allowed.',
+                                             common_config('group', 'maxaliases')),
+                                          common_config('group', 'maxaliases')));;
+                $this->out->elementEnd('li');
+            }
+            Event::handle('EndGroupEditFormData', array($this));
         }
         $this->out->elementEnd('ul');
     }