diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 6f98015b3d92250ec9574444699b1ad000ea10c5..b36785a5fbaee0220ffe45db66615aed2b5bd578 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -17,7 +17,7 @@ use a self-hosted GitLab instance:
[`https://gitlab.orfeo-toolbox.org/orfeotoolbox/otb`](https://gitlab.orfeo-toolbox.org/orfeotoolbox/otb)
-Remember to check out also our [developers mailing list](https://groups.google.com/forum/?hl=fr#!forum/otb-developers/join),
+Remember to check out also our [forum](https://forum.orfeo-toolbox.org/),
where we discuss some features, improvements and high level project planning.
You are welcome to ask questions there as a beginner or future OTB contributor!
diff --git a/Documentation/Cookbook/rst/index.rst b/Documentation/Cookbook/rst/index.rst
index 7660dd88f7efb5b51f1a4fc0b7912e5e317d411f..cae81054b169dd294fcc3fbb5e05ccf25422b490 100644
--- a/Documentation/Cookbook/rst/index.rst
+++ b/Documentation/Cookbook/rst/index.rst
@@ -32,7 +32,7 @@ Get started now with the :doc:`Installation` chapter.
Get help, share your experience and contribute to the Orfeo-Toolbox project by
joining `our community `_ and
-`users mailing list `_.
+`users forum `_.
For other documentation, be sure to read:
diff --git a/Documentation/SoftwareGuide/Latex/Introduction.tex b/Documentation/SoftwareGuide/Latex/Introduction.tex
index 33be724025507a3ceb4f49a55999a6e77b15ceef..9b56b3f45586b43fa06735582b0f3a90c4e2a01d 100644
--- a/Documentation/SoftwareGuide/Latex/Introduction.tex
+++ b/Documentation/SoftwareGuide/Latex/Introduction.tex
@@ -224,15 +224,15 @@ and its associated data. This data is available at
\index{OTB!mailing list}
\index{mailing list}
-It is strongly recommended that you join the users mailing list. This is one
+It is strongly recommended that you join the users forum. This is one
of the primary resources for guidance and help regarding the use of the
-toolkit. You can subscribe to the users list online at
+toolkit:
\begin{center}
-\url{http://groups.google.com/group/otb-users}
+\url{https://forum.orfeo-toolbox.org/}
\end{center}
-The otb-users mailing list is also the best mechanism for expressing your
+The forum is also the best mechanism for expressing your
opinions about the toolbox and to let developers know about features that you
find useful, desirable or even unnecessary. OTB developers are committed to
creating a self-sustaining open-source OTB community. Feedback from users is