diff --git a/knowledge base/kubernetes/cluster-api.placeholder b/knowledge base/kubernetes/cluster-api.placeholder
index 53c74fb..1b5ee29 100644
--- a/knowledge base/kubernetes/cluster-api.placeholder	
+++ b/knowledge base/kubernetes/cluster-api.placeholder	
@@ -1 +1,2 @@
 https://cluster-api.sigs.k8s.io/
+https://capz.sigs.k8s.io/
diff --git a/knowledge base/kubernetes/harbor.placeholder b/knowledge base/kubernetes/harbor.placeholder
new file mode 100644
index 0000000..e0b1433
--- /dev/null
+++ b/knowledge base/kubernetes/harbor.placeholder	
@@ -0,0 +1 @@
+https://goharbor.io/
diff --git a/knowledge base/kubernetes/kyverno.placeholder b/knowledge base/kubernetes/kyverno.placeholder
new file mode 100644
index 0000000..a10a1d6
--- /dev/null
+++ b/knowledge base/kubernetes/kyverno.placeholder	
@@ -0,0 +1 @@
+https://kyverno.io/
diff --git a/knowledge base/notary.placeholder b/knowledge base/notary.placeholder
new file mode 100644
index 0000000..720fc1e
--- /dev/null
+++ b/knowledge base/notary.placeholder	
@@ -0,0 +1,2 @@
+https://github.com/notaryproject/notary
+https://siegert-maximilian.medium.com/ensure-content-trust-on-kubernetes-using-notary-and-open-policy-agent-485ab3a9423c