diff --git a/sysadm/data-silos/cassandra/index.rst b/sysadm/data-silos/cassandra/index.rst
index 205051b..4401fcd 100644
--- a/sysadm/data-silos/cassandra/index.rst
+++ b/sysadm/data-silos/cassandra/index.rst
@@ -1,2 +1,7 @@
+.. _cassandra:
+
 Cassandra
 =========
+
+.. todo::
+   This page is a work in progress.
diff --git a/sysadm/data-silos/elasticsearch/index.rst b/sysadm/data-silos/elasticsearch/index.rst
index 438b1ae..c3234dd 100644
--- a/sysadm/data-silos/elasticsearch/index.rst
+++ b/sysadm/data-silos/elasticsearch/index.rst
@@ -1,2 +1,7 @@
+.. _elasticsearch:
+
 ElasticSearch
 =============
+
+.. todo::
+   This page is a work in progress.
diff --git a/sysadm/data-silos/kafka/index.rst b/sysadm/data-silos/kafka/index.rst
index 682c93b..dabd7c5 100644
--- a/sysadm/data-silos/kafka/index.rst
+++ b/sysadm/data-silos/kafka/index.rst
@@ -1,2 +1,7 @@
+.. _kafka:
+
 Kafka
 =====
+
+.. todo::
+   This page is a work in progress.