diff --git a/contents/static/pruefung_sidebar.html b/contents/static/pruefung_sidebar.html
index e9eeff9..1f8c097 100644
--- a/contents/static/pruefung_sidebar.html
+++ b/contents/static/pruefung_sidebar.html
@@ -33,3 +33,9 @@
 <li><a href="https://amfupapp.streamlit.app" target="_blank" rel="noopener">Pr&uuml;fungssimulation</a> AMFUP</li>
 <li><a href="https://afu-test.de/" target="_blank" rel="noopener">Pr&uuml;fungssimulation</a> AFU-King&nbsp;</li>
 </ul>
+<p>Chat Lerngruppen:</p>
+<ul>
+<li><a href="https://matrix.to/#/#ausbildung:darc.de" target="_blank" rel="noopener">Matrix</a></li>
+<li><a href="https://t.me/Lerngruppe_50Ohm" target="_blank" rel="noopener">Telegram</a></li>
+<li><a href="https://discord.com/channels/1001784654472421436/1006122143605592085" target="_blank" rel="noopener">Discord</a></li>
+</ul>