diff --git a/Backup-to-rsync.net-via-ZFS.md b/Backup-to-rsync.net-via-ZFS.md
index 9d80a64..0d3f7f8 100644
--- a/Backup-to-rsync.net-via-ZFS.md
+++ b/Backup-to-rsync.net-via-ZFS.md
@@ -1,5 +1,7 @@
 rsync.net has accounts with actual full ZFS support. Since its basically a VM with full root access, you can use all the features you need
 
+See https://www.rsync.net/products/zfsintro.html .
+
 This tutorial will show you how to use it.
 
 ## Basic backup