diff --git a/ANSOL-en.tex b/ANSOL-en.tex
index 06a8a80..810be1a 100644
--- a/ANSOL-en.tex
+++ b/ANSOL-en.tex
@@ -509,6 +509,16 @@ Advantages of Free Software -- Cost
   \includegraphics{ansol-geral.png}
 \end{slide}
 
+\begin{slide}
+  \begin{small}
+    \begin{center}
+    \url{https://matrix.to/#/#ansol-geral:matrix.org} or \url{https://t.me/ansolgeral}
+
+    \includegraphics{ansol-matrix.png} \includegraphics{ansol-telegram.png}
+    \end{center}
+  \end{small}
+\end{slide}
+
 \begin{slide}
   \includegraphics[scale=0.8]{ANSOL-flyers.png}
 \end{slide}
diff --git a/ANSOL-presentation-en.pdf b/ANSOL-presentation-en.pdf
index 3d1ad42..6c5d009 100644
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diff --git a/ANSOL-presentation.pdf b/ANSOL-presentation.pdf
index 645f097..684d916 100644
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diff --git a/ANSOL.tex b/ANSOL.tex
index f29f043..cf9f5d8 100644
--- a/ANSOL.tex
+++ b/ANSOL.tex
@@ -510,6 +510,16 @@ As vantagens do Software Livre -- Custo
   \includegraphics{ansol-geral.png}
 \end{slide}
 
+\begin{slide}
+  \begin{center}
+  \begin{small}
+    \url{https://matrix.to/#/#ansol-geral:matrix.org} or \url{https://t.me/ansolgeral}
+
+    \includegraphics{ansol-matrix.png} \includegraphics{ansol-telegram.png}
+  \end{small}
+  \end{center}
+\end{slide}
+
 \begin{slide}
   \includegraphics[scale=0.8]{ANSOL-flyers.png}
 \end{slide}
diff --git a/ansol-matrix.png b/ansol-matrix.png
new file mode 100644
index 0000000..07bc885
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diff --git a/ansol-telegram.png b/ansol-telegram.png
new file mode 100644
index 0000000..66996b4
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