diff --git a/How-to-contribute.md b/How-to-contribute.md
index 2260d12..700c682 100644
--- a/How-to-contribute.md
+++ b/How-to-contribute.md
@@ -1,3 +1,16 @@
+All contributions are welcome. We like to see contributions like for example:
+* tutorials on installing Tracks in various environments.
+  They can be added to the wiki on github
+* tutorials on using Tracks (user manual)
+  They can be added to the wiki on github
+* Reporting issues you have with Tracks (bugs, enhancements).
+  Please use Assembla for reporting issues, we do not use guthub for issue management
+* Bugfixes, enhancements: pull requests
+  We review pull requests on github.
+  For enhancements it would be great to first discuss them on the mailing list so you
+  can figure out if it could be merged or not. You may use the wiki too to describe
+  your change if it is too big for an email.
+
 To clone Tracks:
 
 <pre>