diff --git a/app/Caches/ImHotGroupList.php b/app/Caches/ImHotGroupList.php
index 62b5d78d..b17c2dcc 100644
--- a/app/Caches/ImHotGroupList.php
+++ b/app/Caches/ImHotGroupList.php
@@ -48,7 +48,6 @@ class ImHotGroupList extends Cache
                 'name' => $group->name,
                 'avatar' => $group->avatar,
                 'about' => $group->about,
-                'user_count' => $group->user_count,
             ];
         }
 
diff --git a/app/Caches/ImHotUserList.php b/app/Caches/ImHotUserList.php
index 1ae7f453..682e651b 100644
--- a/app/Caches/ImHotUserList.php
+++ b/app/Caches/ImHotUserList.php
@@ -48,11 +48,7 @@ class ImHotUserList extends Cache
                 'name' => $user->name,
                 'avatar' => $user->avatar,
                 'about' => $user->about,
-                'location' => $user->location,
-                'gender' => $user->gender,
                 'vip' => $user->vip,
-                'follower_count' => $user->follower_count,
-                'following_count' => $user->following_count,
             ];
         }
 
@@ -67,7 +63,7 @@ class ImHotUserList extends Cache
     {
         return UserModel::query()
             ->where('deleted = 0')
-            ->orderBy('follower_count DESC')
+            ->orderBy('id DESC')
             ->limit($limit)
             ->execute();
     }
diff --git a/app/Http/Admin/Views/user/list.volt b/app/Http/Admin/Views/user/list.volt
index ed87995e..cf4ce09d 100644
--- a/app/Http/Admin/Views/user/list.volt
+++ b/app/Http/Admin/Views/user/list.volt
@@ -1,12 +1,3 @@
-{%- macro last_login_info(user) %}
-    {% if user.last_login_ip %}
-        <span class="layui-badge layui-bg-gray">学员</span>
-    {% endif %}
-    {% if user.last_login_time %}
-        <span class="layui-badge layui-bg-gray">学员</span>
-    {% endif %}
-{%- endmacro %}
-
 {%- macro gender_info(value) %}
     {% if value == 1 %}
         <span class="layui-badge layui-bg-red">男</span>
@@ -72,9 +63,9 @@
         <th>编号</th>
         <th>昵称</th>
         <th>性别</th>
-        <th>最后登录</th>
         <th>教学角色</th>
         <th>后台角色</th>
+        <th>活跃时间</th>
         <th>注册时间</th>
         <th>操作</th>
     </tr>
@@ -85,9 +76,9 @@
             <td>{{ item.id }}</td>
             <td><span title="{{ item.about }}">{{ item.name }}</span>{{ status_info(item) }}</td>
             <td>{{ gender_info(item.gender) }}</td>
-            <td>{{ last_login_info(item) }}</td>
             <td>{{ edu_role_info(item) }}</td>
             <td>{{ admin_role_info(item) }}</td>
+            <td>{{ date('Y-m-d H:i:s',item.active_time) }}</td>
             <td>{{ date('Y-m-d H:i:s',item.create_time) }}</td>
             <td align="center">
                 <div class="layui-dropdown">
diff --git a/app/Http/Web/Controllers/MessengerController.php b/app/Http/Web/Controllers/MessengerController.php
index 83e3909a..54ee8c61 100644
--- a/app/Http/Web/Controllers/MessengerController.php
+++ b/app/Http/Web/Controllers/MessengerController.php
@@ -202,11 +202,15 @@ class MessengerController extends LayerController
     }
 
     /**
-     * @Post("/stats/update", name="web.im.update_stats")
+     * @Post("/online/update", name="web.im.update_online")
      */
-    public function updateStatsAction()
+    public function updateOnlineAction()
     {
+        $service = new MessengerService();
 
+        $service->updateOnline();
+
+        return $this->jsonSuccess();
     }
 
     /**
diff --git a/app/Http/Web/Services/Messenger.php b/app/Http/Web/Services/Messenger.php
index 24b13bbd..7e3826b4 100644
--- a/app/Http/Web/Services/Messenger.php
+++ b/app/Http/Web/Services/Messenger.php
@@ -43,9 +43,9 @@ class Messenger extends Service
             'status' => 'online',
         ];
 
-        $friend = $this->handleFriendList($user->id);
+        $friend = $this->handleFriendList($user);
 
-        $group = $this->handleGroupList($user->id);
+        $group = $this->handleGroupList($user);
 
         return [
             'mine' => $mine,
@@ -225,6 +225,11 @@ class Messenger extends Service
     {
         $user = $this->getLoginUser();
 
+        $user->update([
+            'online' => 1,
+            'active_time' => time(),
+        ]);
+
         $clientId = $this->request->getPost('client_id');
 
         Gateway::$registerAddress = $this->getRegisterAddress();
@@ -241,7 +246,12 @@ class Messenger extends Service
             }
         }
 
-        $this->pullUnreadFriendMessages($user->id);
+        $this->pullUnreadFriendMessages($user);
+
+        /**
+         * @todo 隐身登录
+         */
+        $this->pushFriendOnlineTips($user, 'online');
     }
 
     public function sendMessage()
@@ -344,6 +354,21 @@ class Messenger extends Service
         }
     }
 
+    public function updateOnline()
+    {
+        $status = $this->request->getPost('status');
+
+        $user = $this->getLoginUser();
+
+        $online = $status == 'online' ? 1 : 0;
+
+        $user->update(['online' => $online]);
+
+        $this->pushFriendOnlineTips($user, $status);
+
+        return $user;
+    }
+
     public function updateSignature()
     {
         $sign = $this->request->getPost('sign');
@@ -500,17 +525,17 @@ class Messenger extends Service
 
         $userRepo = new UserRepo();
 
-        $sender = $userRepo->findById($message->sender_id);
+        $applicant = $userRepo->findById($message->sender_id);
 
         $groupUserRepo = new ImChatGroupUserRepo();
 
-        $groupUser = $groupUserRepo->findGroupUser($group->id, $sender->id);
+        $groupUser = $groupUserRepo->findGroupUser($group->id, $applicant->id);
 
         if (!$groupUser) {
             $groupUserModel = new ImChatGroupUserModel();
             $groupUserModel->create([
                 'group_id' => $group->id,
-                'user_id' => $sender->id,
+                'user_id' => $applicant->id,
             ]);
         }
 
@@ -518,7 +543,9 @@ class Messenger extends Service
         $itemInfo['status'] = ImSystemMessageModel::REQUEST_ACCEPTED;
         $message->update(['item_info' => $itemInfo]);
 
-        $this->handleAcceptGroupNotice($user, $sender, $group);
+        $this->handleAcceptGroupNotice($user, $applicant, $group);
+
+        $this->handleNewGroupUserNotice($applicant, $group);
     }
 
     public function refuseGroup()
@@ -554,16 +581,18 @@ class Messenger extends Service
         $this->handleRefuseGroupNotice($user, $sender);
     }
 
-    protected function pullUnreadFriendMessages($userId)
+    protected function pullUnreadFriendMessages(UserModel $user)
     {
         $userRepo = new UserRepo();
 
-        $messages = $userRepo->findUnreadImFriendMessages($userId);
+        $messages = $userRepo->findUnreadImFriendMessages($user->id);
 
         if ($messages->count() == 0) {
             return;
         }
 
+        Gateway::$registerAddress = $this->getRegisterAddress();
+
         $builder = new ImMessageListBuilder();
 
         $senders = $builder->getSenders($messages->toArray());
@@ -588,16 +617,55 @@ class Messenger extends Service
                 ],
             ]);
 
-            Gateway::sendToUid($userId, $content);
+            Gateway::sendToUid($user->id, $content);
         }
     }
 
-    protected function handleFriendList($userId)
+    protected function pushFriendOnlineTips(UserModel $user, $status)
+    {
+        /**
+         * 检查间隔，避免频繁提醒干扰
+         */
+        if (time() - $user->update_time < 600) {
+            return;
+        }
+
+        $userRepo = new UserRepo();
+
+        $friendUsers = $userRepo->findImFriendUsers($user->id);
+
+        if ($friendUsers->count() == 0) {
+            return;
+        }
+
+        $friendIds = kg_array_column($friendUsers->toArray(), 'friend_id');
+
+        $friends = $userRepo->findByIds($friendIds);
+
+        Gateway::$registerAddress = $this->getRegisterAddress();
+
+        foreach ($friends as $friend) {
+            if (Gateway::isUidOnline($friend->id)) {
+                $content = kg_json_encode([
+                    'type' => 'show_online_tips',
+                    'friend' => [
+                        'id' => $user->id,
+                        'name' => $user->name,
+                        'avatar' => $user->avatar,
+                    ],
+                    'status' => $status == 'online' ? 'online' : 'offline',
+                ]);
+                Gateway::sendToUid($friend->id, $content);
+            }
+        }
+    }
+
+    protected function handleFriendList(UserModel $user)
     {
         $userRepo = new UserRepo();
 
-        $friendGroups = $userRepo->findImFriendGroups($userId);
-        $friendUsers = $userRepo->findImFriendUsers($userId);
+        $friendGroups = $userRepo->findImFriendGroups($user->id);
+        $friendUsers = $userRepo->findImFriendUsers($user->id);
 
         $items = [];
 
@@ -634,7 +702,7 @@ class Messenger extends Service
                 'username' => $user->name,
                 'avatar' => $user->avatar,
                 'sign' => $user->sign,
-                'status' => 'online',
+                'status' => $user->online ? 'online' : 'offline',
             ];
         }
 
@@ -652,11 +720,11 @@ class Messenger extends Service
         return $items;
     }
 
-    protected function handleGroupList($userId)
+    protected function handleGroupList(UserModel $user)
     {
         $userRepo = new UserRepo();
 
-        $groups = $userRepo->findImChatGroups($userId);
+        $groups = $userRepo->findImChatGroups($user->id);
 
         if ($groups->count() == 0) {
             return [];
@@ -809,7 +877,7 @@ class Messenger extends Service
         $online = Gateway::isUidOnline($receiver->id);
 
         if ($online) {
-            $content = kg_json_encode(['type' => 'show_sys_msg']);
+            $content = kg_json_encode(['type' => 'refresh_msg_box']);
             Gateway::sendToUid($receiver->id, $content);
         }
     }
@@ -883,7 +951,7 @@ class Messenger extends Service
         $online = Gateway::isUidOnline($receiver->id);
 
         if ($online) {
-            $content = kg_json_encode(['type' => 'show_sys_msg']);
+            $content = kg_json_encode(['type' => 'refresh_msg_box']);
             Gateway::sendToUid($receiver->id, $content);
         }
     }
@@ -932,7 +1000,7 @@ class Messenger extends Service
         $online = Gateway::isUidOnline($receiver->id);
 
         if ($online) {
-            $content = kg_json_encode(['type' => 'show_sys_msg']);
+            $content = kg_json_encode(['type' => 'refresh_msg_box']);
             Gateway::sendToUid($receiver->id, $content);
         }
     }
@@ -992,14 +1060,44 @@ class Messenger extends Service
 
         Gateway::$registerAddress = $this->getRegisterAddress();
 
-        $online = Gateway::isUidOnline($receiver->id);
-
-        if ($online) {
-            $content = kg_json_encode(['type' => 'show_sys_msg']);
+        if (Gateway::isUidOnline($receiver->id)) {
+            $content = kg_json_encode(['type' => 'refresh_msg_box']);
             Gateway::sendToUid($receiver->id, $content);
         }
     }
 
+    protected function handleNewGroupUserNotice(UserModel $newUser, ImChatGroupModel $group)
+    {
+        $groupRepo = new ImChatGroupRepo();
+
+        $users = $groupRepo->findGroupUsers($group->id);
+
+        if ($users->count() == 0) {
+            return;
+        }
+
+        Gateway::$registerAddress = $this->getRegisterAddress();
+
+        foreach ($users as $user) {
+            $content = kg_json_encode([
+                'type' => 'new_group_user',
+                'user' => [
+                    'id' => $newUser->id,
+                    'name' => $newUser->name,
+                    'avatar' => $newUser->avatar,
+                ],
+                'group' => [
+                    'id' => $group->id,
+                    'name' => $group->name,
+                    'avatar' => $group->avatar,
+                ],
+            ]);
+            if (Gateway::isUidOnline($user->id)) {
+                Gateway::sendToUid($user->id, $content);
+            }
+        }
+    }
+
     protected function getGroupName($groupId)
     {
         return "group_{$groupId}";
diff --git a/app/Http/Web/Views/messenger/find_users.volt b/app/Http/Web/Views/messenger/find_users.volt
index 5fa9e853..410a9b85 100644
--- a/app/Http/Web/Views/messenger/find_users.volt
+++ b/app/Http/Web/Views/messenger/find_users.volt
@@ -4,6 +4,9 @@
             {% for item in pager.items %}
                 <div class="layui-col-md2">
                     <div class="user-card">
+                        {% if item.vip == 0 %}
+                            <span class="vip">会员</span>
+                        {% endif %}
                         <div class="avatar">
                             <a href="javascript:" title="{{ item.about|e }}"><img src="{{ item.avatar }}" alt="{{ item.name }}"></a>
                         </div>
diff --git a/app/Http/Web/Views/user/friends.volt b/app/Http/Web/Views/user/friends.volt
index c159accb..aa35159d 100644
--- a/app/Http/Web/Views/user/friends.volt
+++ b/app/Http/Web/Views/user/friends.volt
@@ -4,6 +4,9 @@
             {% for item in pager.items %}
                 <div class="layui-col-md2">
                     <div class="user-card">
+                        {% if item.vip == 0 %}
+                            <span class="vip">会员</span>
+                        {% endif %}
                         <div class="avatar">
                             <a href="javascript:" title="{{ item.about|e }}"><img src="{{ item.avatar }}" alt="{{ item.name }}"></a>
                         </div>
diff --git a/app/Http/Web/Views/user/show.volt b/app/Http/Web/Views/user/show.volt
index 3f23b7fd..3342f3b7 100644
--- a/app/Http/Web/Views/user/show.volt
+++ b/app/Http/Web/Views/user/show.volt
@@ -13,7 +13,7 @@
         <div class="info">
             <h3>{{ user.name }} {{ vip_flag }}</h3>
             <p><span><i class="layui-icon layui-icon-location"></i></span><span>{{ user.location }}</span></p>
-            <p><span><i class="layui-icon layui-icon-time"></i></span><span>{{ date('Y-m-d H:i',user.last_login_time) }}</span></p>
+            <p><span><i class="layui-icon layui-icon-time"></i></span><span>{{ date('Y-m-d H:i',user.active_time) }}</span></p>
         </div>
         {% if user.about %}
             <div class="about">{{ user.about }}</div>
diff --git a/app/Models/User.php b/app/Models/User.php
index cc0529cb..841a7343 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -93,7 +93,14 @@ class User extends Model
     public $admin_role;
 
     /**
-     * VIP标识
+     * 在线标识
+     *
+     * @var int
+     */
+    public $online;
+
+    /**
+     * 会员标识
      *
      * @var int
      */
@@ -113,20 +120,6 @@ class User extends Model
      */
     public $deleted;
 
-    /**
-     * 最近登录IP
-     *
-     * @var string
-     */
-    public $last_login_ip;
-
-    /**
-     * 最近登录时间
-     *
-     * @var int
-     */
-    public $last_login_time;
-
     /**
      * VIP期限
      *
@@ -142,18 +135,11 @@ class User extends Model
     public $lock_expiry_time;
 
     /**
-     * 关注数量
+     * 活跃时间
      *
      * @var int
      */
-    public $following_count;
-
-    /**
-     * 粉丝数量
-     *
-     * @var int
-     */
-    public $follower_count;
+    public $active_time;
 
     /**
      * 创建时间
diff --git a/app/Repos/User.php b/app/Repos/User.php
index b58c96d6..29b985df 100644
--- a/app/Repos/User.php
+++ b/app/Repos/User.php
@@ -54,9 +54,6 @@ class User extends Repository
         }
 
         switch ($sort) {
-            case 'popular':
-                $orderBy = 'follower_count DESC';
-                break;
             default:
                 $orderBy = 'id DESC';
                 break;
diff --git a/app/Services/Frontend/User/UserInfo.php b/app/Services/Frontend/User/UserInfo.php
index f23e694b..919f93f9 100644
--- a/app/Services/Frontend/User/UserInfo.php
+++ b/app/Services/Frontend/User/UserInfo.php
@@ -30,7 +30,7 @@ class UserInfo extends FrontendService
             'gender' => $user->gender,
             'vip' => $user->vip,
             'locked' => $user->locked,
-            'last_login_time' => $user->last_login_time,
+            'active_time' => $user->active_time,
             'create_time' => $user->create_time,
         ];
     }
diff --git a/public/static/web/css/common.css b/public/static/web/css/common.css
index 4a0b2e4a..38f4bf91 100644
--- a/public/static/web/css/common.css
+++ b/public/static/web/css/common.css
@@ -1153,6 +1153,7 @@
     float: left;
     width: 100%;
     height: 220px;
+    position: relative;
     text-align: center;
     background-color: #fff;
     border-radius: 2px;
@@ -1184,6 +1185,19 @@
     font-size: 12px;
 }
 
+.user-card .vip {
+    position: absolute;
+    top: 8px;
+    right: 8px;
+    padding: 1px 3px;
+    border-radius: 2px;
+    text-align: center;
+    font-size: 12px;
+    line-height: 1.5em;
+    background-color: orange;
+    color: white;
+}
+
 .user-card .action span {
     cursor: pointer;
 }
@@ -1312,6 +1326,12 @@
     padding: 0 5px;
 }
 
+.im-user-list .vip {
+    top: 5px;
+    right: 5px;
+    font-size: 10px;
+}
+
 .layim-msgbox {
     margin: 15px;
 }
@@ -1324,15 +1344,7 @@
     border-bottom: 1px dotted #e2e2e2;
 }
 
-.layim-msgbox .layim-msgbox-tips {
-    margin: 0;
-    padding: 10px 0;
-    border: none;
-    text-align: center;
-    color: #999;
-}
-
-.layim-msgbox .layim-msgbox-system {
+.layim-msgbox-system {
     padding: 0 10px 10px 10px;
 }
 
diff --git a/public/static/web/js/im.js b/public/static/web/js/im.js
index 57282bf9..d5359d6d 100644
--- a/public/static/web/js/im.js
+++ b/public/static/web/js/im.js
@@ -23,17 +23,21 @@ layui.use(['jquery', 'layim'], function () {
             socket.send('pong...');
         } else if (data.type === 'bind_user') {
             bindUser(data);
-            showSystemMessage();
+            refreshMessageBox();
+        } else if (data.type === 'new_group_user') {
+            showNewGroupUserMessage(data);
+        } else if (data.type === 'show_online_tips') {
+            showOnlineTips(data);
         } else if (data.type === 'show_chat_msg') {
             showChatMessage(data);
-        } else if (data.type === 'show_sys_msg') {
-            showSystemMessage();
+        } else if (data.type === 'refresh_msg_box') {
+            refreshMessageBox();
         } else if (data.type === 'friend_accepted') {
             friendAccepted(data);
-            showSystemMessage();
+            refreshMessageBox();
         } else if (data.type === 'group_accepted') {
             groupAccepted(data);
-            showSystemMessage();
+            refreshMessageBox();
         }
     };
 
@@ -61,6 +65,14 @@ layui.use(['jquery', 'layim'], function () {
         sendChatMessage(res);
     });
 
+    layim.on('online', function (status) {
+        $.ajax({
+            type: 'POST',
+            url: '/im/online/update',
+            data: {status: status}
+        });
+    });
+
     layim.on('sign', function (sign) {
         $.ajax({
             type: 'POST',
@@ -89,7 +101,17 @@ layui.use(['jquery', 'layim'], function () {
         layim.getMessage(res.message);
     }
 
-    function showSystemMessage() {
+    function showNewGroupUserMessage(res) {
+        var content = '<a href="/user/' + res.user.id + '" target="_blank">[' + res.user.name + ']</a> 加入群聊';
+        layim.getMessage({
+            system: true,
+            type: 'group',
+            id: res.group.id,
+            content: content
+        });
+    }
+
+    function refreshMessageBox() {
         $.ajax({
             type: 'GET',
             url: '/im/msg/unread/count',
@@ -101,6 +123,16 @@ layui.use(['jquery', 'layim'], function () {
         });
     }
 
+    function showOnlineTips(res) {
+        var msg = res.friend.name + '上线了';
+        layer.msg(msg, {
+            icon: 6,
+            offset: 'b',
+            anim: 6
+        });
+        layim.setFriendStatus(res.friend.id, res.status);
+    }
+
     function friendAccepted(res) {
         layim.addList({
             type: 'friend',