diff --git a/index.md b/index.md
index e421a4f7..d1f52381 100644
--- a/index.md
+++ b/index.md
@@ -1,6 +1,6 @@
 # Overview
 
-This is the collection of all Linux related documentation. 
+This is the collection of Control Systems related documentation. 
 
 There are various chapters for the different user groups:
 - End User - [User Guide](user-guide/index.md)
@@ -22,20 +22,11 @@ There are various chapters for the different user groups:
 
 ## Communication
 
-There are 3 Email mailing lists that can be used for communication
-
-__linux-eng@psi.ch__
-This is the mailing list of the AWI Linux Core Team
-
-__linux-announce@lists.psi.ch__
-All people can subscribe to this list via [sympa](https://psilists.ethz.ch/sympa/info/linux-announce). It is intendet for outgoing communication to everybody that is interested in linux topics
-
-
-__linux@psi.ch__
-This is a mailing list for incoming messages and/or for internal discussion. This list (it is a Outlook/Exchange managed distribution list) only contains the people that are regarded as the core team. If you want to be part of that team, drop an email stating so to this list!
+In first order, contact your associated Controls Expert for inquiries.
 
 
 ## Documentation / Knowledgebase
+[AcceleratorWiki](https://ac-wiki.psi.ch)
 
 Check out the resources on this page for PSI specific Linux documentation.
 AWI Linux Core Group Documentation: [linux.psi.ch](https://linux.psi.ch)
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