diff --git a/app/Models/Meetup.php b/app/Models/Meetup.php
index 745648b5..0f8bf2fa 100644
--- a/app/Models/Meetup.php
+++ b/app/Models/Meetup.php
@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use App\Traits\TwitterTrait;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
diff --git a/app/Observers/CourseEventObserver.php b/app/Observers/CourseEventObserver.php
new file mode 100644
index 00000000..432d4a32
--- /dev/null
+++ b/app/Observers/CourseEventObserver.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\CourseEvent;
+use App\Traits\TwitterTrait;
+
+class CourseEventObserver
+{
+    use TwitterTrait;
+
+    /**
+     * Handle the CourseEvent "created" event.
+     *
+     * @param  \App\Models\CourseEvent  $courseEvent
+     *
+     * @return void
+     */
+    public function created(CourseEvent $courseEvent)
+    {
+        if (config('feeds.services.twitterAccountId')) {
+            $this->setNewAccessToken(1);
+
+            $text = sprintf("Unser Dozent %s hat einen neuen Kurs-Termin eingestellt:\n\n%s\n\n%s\n\n%s\n\n#Bitcoin #Kurs #Education #Einundzwanzig",
+                $courseEvent->course->lecturer->name,
+                $courseEvent->course->name,
+                str($courseEvent->course->description)->limit(100),
+                url()->route('school.landingPage.lecturer',
+                    ['country' => 'de', 'lecturer' => $courseEvent->course->lecturer]),
+            );
+
+            $this->postTweet($text);
+        }
+    }
+
+    /**
+     * Handle the CourseEvent "updated" event.
+     *
+     * @param  \App\Models\CourseEvent  $courseEvent
+     *
+     * @return void
+     */
+    public function updated(CourseEvent $courseEvent)
+    {
+        //
+    }
+
+    /**
+     * Handle the CourseEvent "deleted" event.
+     *
+     * @param  \App\Models\CourseEvent  $courseEvent
+     *
+     * @return void
+     */
+    public function deleted(CourseEvent $courseEvent)
+    {
+        //
+    }
+
+    /**
+     * Handle the CourseEvent "restored" event.
+     *
+     * @param  \App\Models\CourseEvent  $courseEvent
+     *
+     * @return void
+     */
+    public function restored(CourseEvent $courseEvent)
+    {
+        //
+    }
+
+    /**
+     * Handle the CourseEvent "force deleted" event.
+     *
+     * @param  \App\Models\CourseEvent  $courseEvent
+     *
+     * @return void
+     */
+    public function forceDeleted(CourseEvent $courseEvent)
+    {
+        //
+    }
+}
diff --git a/app/Observers/CourseObserver.php b/app/Observers/CourseObserver.php
new file mode 100644
index 00000000..0036640f
--- /dev/null
+++ b/app/Observers/CourseObserver.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\Course;
+use App\Traits\TwitterTrait;
+
+class CourseObserver
+{
+    use TwitterTrait;
+
+    /**
+     * Handle the Course "created" event.
+     *
+     * @param  \App\Models\Course  $course
+     *
+     * @return void
+     */
+    public function created(Course $course)
+    {
+        if (config('feeds.services.twitterAccountId')) {
+            $this->setNewAccessToken(1);
+
+            $text = sprintf("Unser Dozent %s hat einen neuen Kurs eingestellt:\n\n%s\n\n%s\n\n%s\n\n#Bitcoin #Kurs #Education #Einundzwanzig",
+                $course->lecturer->name,
+                $course->name,
+                str($course->description)->limit(100),
+                url()->route('school.landingPage.lecturer',
+                    ['country' => 'de', 'lecturer' => $course->lecturer]),
+            );
+
+            $this->postTweet($text);
+        }
+    }
+
+    /**
+     * Handle the Course "updated" event.
+     *
+     * @param  \App\Models\Course  $course
+     *
+     * @return void
+     */
+    public function updated(Course $course)
+    {
+        //
+    }
+
+    /**
+     * Handle the Course "deleted" event.
+     *
+     * @param  \App\Models\Course  $course
+     *
+     * @return void
+     */
+    public function deleted(Course $course)
+    {
+        //
+    }
+
+    /**
+     * Handle the Course "restored" event.
+     *
+     * @param  \App\Models\Course  $course
+     *
+     * @return void
+     */
+    public function restored(Course $course)
+    {
+        //
+    }
+
+    /**
+     * Handle the Course "force deleted" event.
+     *
+     * @param  \App\Models\Course  $course
+     *
+     * @return void
+     */
+    public function forceDeleted(Course $course)
+    {
+        //
+    }
+}
diff --git a/app/Observers/MeetupObserver.php b/app/Observers/MeetupObserver.php
new file mode 100644
index 00000000..833af3ca
--- /dev/null
+++ b/app/Observers/MeetupObserver.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\Meetup;
+use App\Traits\TwitterTrait;
+
+class MeetupObserver
+{
+    use TwitterTrait;
+
+    /**
+     * Handle the Meetup "created" event.
+     *
+     * @param  \App\Models\Meetup  $meetup
+     *
+     * @return void
+     */
+    public function created(Meetup $meetup)
+    {
+        if (config('feeds.services.twitterAccountId')) {
+            $this->setNewAccessToken(1);
+
+            $text = sprintf("Eine neue Meetup Gruppe wurde hinzugefügt:\n\n%s\n\n%s\n\n#Bitcoin #Meetup #Einundzwanzig",
+                $meetup->name,
+                url()->route('meetup.landing', ['country' => 'de', 'meetup' => $meetup])
+            );
+
+            $this->postTweet($text);
+        }
+    }
+
+    /**
+     * Handle the Meetup "updated" event.
+     *
+     * @param  \App\Models\Meetup  $meetup
+     *
+     * @return void
+     */
+    public function updated(Meetup $meetup)
+    {
+        //
+    }
+
+    /**
+     * Handle the Meetup "deleted" event.
+     *
+     * @param  \App\Models\Meetup  $meetup
+     *
+     * @return void
+     */
+    public function deleted(Meetup $meetup)
+    {
+        //
+    }
+
+    /**
+     * Handle the Meetup "restored" event.
+     *
+     * @param  \App\Models\Meetup  $meetup
+     *
+     * @return void
+     */
+    public function restored(Meetup $meetup)
+    {
+        //
+    }
+
+    /**
+     * Handle the Meetup "force deleted" event.
+     *
+     * @param  \App\Models\Meetup  $meetup
+     *
+     * @return void
+     */
+    public function forceDeleted(Meetup $meetup)
+    {
+        //
+    }
+}
diff --git a/app/Observers/OrangePillObserver.php b/app/Observers/OrangePillObserver.php
new file mode 100644
index 00000000..75cf3eb4
--- /dev/null
+++ b/app/Observers/OrangePillObserver.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\OrangePill;
+use App\Traits\TwitterTrait;
+
+class OrangePillObserver
+{
+    use TwitterTrait;
+
+    /**
+     * Handle the OrangePill "created" event.
+     *
+     * @param  \App\Models\OrangePill  $orangePill
+     *
+     * @return void
+     */
+    public function created(OrangePill $orangePill)
+    {
+        if (config('feeds.services.twitterAccountId')) {
+            $this->setNewAccessToken(1);
+
+            $text = sprintf("In einem der weltweiten Bücherschränke wurde ein Bitcoin-Buch reingestellt:\n\n%s\n\n%s\n\n%s\n\n#Bitcoin #Education #Einundzwanzig",
+                $orangePill->bookCase->title,
+                $orangePill->bookCase->address,
+                url()->route('bookCases.comment.bookcase', ['country' => 'de', 'bookCase' => $orangePill->bookCase]),
+            );
+
+            $this->postTweet($text);
+        }
+    }
+
+    /**
+     * Handle the OrangePill "updated" event.
+     *
+     * @param  \App\Models\OrangePill  $orangePill
+     *
+     * @return void
+     */
+    public function updated(OrangePill $orangePill)
+    {
+        //
+    }
+
+    /**
+     * Handle the OrangePill "deleted" event.
+     *
+     * @param  \App\Models\OrangePill  $orangePill
+     *
+     * @return void
+     */
+    public function deleted(OrangePill $orangePill)
+    {
+        //
+    }
+
+    /**
+     * Handle the OrangePill "restored" event.
+     *
+     * @param  \App\Models\OrangePill  $orangePill
+     *
+     * @return void
+     */
+    public function restored(OrangePill $orangePill)
+    {
+        //
+    }
+
+    /**
+     * Handle the OrangePill "force deleted" event.
+     *
+     * @param  \App\Models\OrangePill  $orangePill
+     *
+     * @return void
+     */
+    public function forceDeleted(OrangePill $orangePill)
+    {
+        //
+    }
+}
diff --git a/app/Providers/EventServiceProvider.php b/app/Providers/EventServiceProvider.php
index 66920a3e..c70ea5e6 100644
--- a/app/Providers/EventServiceProvider.php
+++ b/app/Providers/EventServiceProvider.php
@@ -3,7 +3,14 @@
 namespace App\Providers;
 
 use App\Listeners\AddLoginReputation;
-use App\Observers\EpisodeObserver;
+use App\Models\Course;
+use App\Models\CourseEvent;
+use App\Models\Meetup;
+use App\Models\OrangePill;
+use App\Observers\CourseEventObserver;
+use App\Observers\CourseObserver;
+use App\Observers\MeetupObserver;
+use App\Observers\OrangePillObserver;
 use Illuminate\Auth\Events\Login;
 use Illuminate\Auth\Events\Registered;
 use Illuminate\Auth\Listeners\SendEmailVerificationNotification;
@@ -16,7 +23,7 @@ class EventServiceProvider extends ServiceProvider
      * @var array<class-string, array<int, class-string>>
      */
     protected $listen = [
-        Login::class => [
+        Login::class      => [
             AddLoginReputation::class,
         ],
         Registered::class => [
@@ -30,7 +37,10 @@ class EventServiceProvider extends ServiceProvider
      */
     public function boot()
     {
-        //
+        Meetup::observe(MeetupObserver::class);
+        OrangePill::observe(OrangePillObserver::class);
+        CourseEvent::observe(CourseEventObserver::class);
+        Course::observe(CourseObserver::class);
     }
 
     /**
diff --git a/app/Traits/TwitterTrait.php b/app/Traits/TwitterTrait.php
new file mode 100644
index 00000000..65536365
--- /dev/null
+++ b/app/Traits/TwitterTrait.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Traits;
+
+use App\Models\TwitterAccount;
+use Illuminate\Support\Facades\Http;
+
+trait TwitterTrait
+{
+    public function setNewAccessToken($accountId)
+    {
+        $twitterAccount = TwitterAccount::find($accountId);
+
+        $response = Http::acceptJson()
+                        ->post('https://api.twitter.com/2/oauth2/token', [
+                            'grant_type'    => 'refresh_token',
+                            'refresh_token' => $twitterAccount->refresh_token,
+                            'client_id'     => 'a0I1Nnp4YmMzZzdtRzFod1ZWT2c6MTpjaQ',
+                        ]);
+        $json = $response->json();
+        \Log::info($json);
+
+        TwitterAccount::find($accountId)
+                      ->update([
+                          'token'         => $json['access_token'],
+                          'refresh_token' => $json['refresh_token'],
+                      ]);
+    }
+
+    public function postTweet($text)
+    {
+        $twitterAccount = TwitterAccount::find(1);
+        $response = Http::acceptJson()
+                        ->withToken($twitterAccount->token)
+                        ->post('https://api.twitter.com/2/tweets', [
+                            'text' => $text,
+                        ]);
+
+        \Log::info($response->json());
+    }
+}
diff --git a/config/feeds/services.php b/config/feeds/services.php
index 287878bd..f49933e2 100644
--- a/config/feeds/services.php
+++ b/config/feeds/services.php
@@ -1,8 +1,10 @@
 <?php
 
-return  [
-  'podcastindex-org' => [
-      'key' => env('PODCASTINDEX_ORG_KEY'),
-      'secret' => env('PODCASTINDEX_ORG_SECRET'),
-  ]
+return [
+    'twitterAccountId' => env('TWITTER_ACCOUNT_ID', null),
+
+    'podcastindex-org' => [
+        'key'    => env('PODCASTINDEX_ORG_KEY'),
+        'secret' => env('PODCASTINDEX_ORG_SECRET'),
+    ]
 ];
diff --git a/database/migrations/2023_01_15_203928_add_refresh_token_field_to_twitter_accounts_table.php b/database/migrations/2023_01_15_203928_add_refresh_token_field_to_twitter_accounts_table.php
new file mode 100644
index 00000000..149e2144
--- /dev/null
+++ b/database/migrations/2023_01_15_203928_add_refresh_token_field_to_twitter_accounts_table.php
@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('twitter_accounts', function (Blueprint $table) {
+            $table->text('token')
+                  ->nullable()
+                  ->change();
+            $table->text('refresh_token')
+                  ->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('twitter_accounts', function (Blueprint $table) {
+            //
+        });
+    }
+};
diff --git a/resources/lang/en.json b/resources/lang/en.json
index 2d82c7e8..1591b677 100644
--- a/resources/lang/en.json
+++ b/resources/lang/en.json
@@ -633,5 +633,6 @@
     "You get a point when you log in.": "",
     "has": "",
     "logins": "",
-    "points": ""
-}
\ No newline at end of file
+    "points": "",
+    "New meetup created: :title": "New meetup created: :title"
+}
diff --git a/routes/web.php b/routes/web.php
index e80809f1..8e31ea76 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -14,6 +14,7 @@ Route::get('/auth/twitter', function () {
     return Socialite::driver('twitter')
                     ->scopes([
                         'tweet.write',
+                        'offline.access',
                     ])
                     ->redirect();
 })
@@ -25,11 +26,12 @@ Route::get('/auth/twitter/callback', function () {
     $twitterAccount = \App\Models\TwitterAccount::updateOrCreate([
         'twitter_id' => $twitterUser->id,
     ], [
-        'twitter_id' => $twitterUser->id,
-        'nickname'   => $twitterUser->nickname,
-        'token'      => $twitterUser->token,
-        'expires_in' => $twitterUser->expiresIn,
-        'data'       => [],
+        'twitter_id'    => $twitterUser->id,
+        'refresh_token' => $twitterUser->refreshToken,
+        'nickname'      => $twitterUser->nickname,
+        'token'         => $twitterUser->token,
+        'expires_in'    => $twitterUser->expiresIn,
+        'data'          => [],
     ]);
 
     echo 'Twitter account updated. We can now tweet on: '.$twitterUser->name;