diff --git a/sites/all/modules/README.txt b/sites/all/modules/README.txt
index f4e35b5..f8725f1 100644
--- a/sites/all/modules/README.txt
+++ b/sites/all/modules/README.txt
@@ -2,3 +2,8 @@
 This directory should be used to place downloaded and custom modules
 which are common to all sites. This will allow you to more easily
 update Drupal core files.
+
+It is common to place modules downloaded from drupal.org in a folder
+called 'contrib' and any site specific modules in a folder called
+'custom' to make the distinction clear to future persons working
+on the site.
