diff --git a/knowledge base/kubernetes/karpenter.md b/knowledge base/kubernetes/karpenter.md
index f75709a..38221e7 100644
--- a/knowledge base/kubernetes/karpenter.md	
+++ b/knowledge base/kubernetes/karpenter.md	
@@ -114,6 +114,7 @@ Requirements:
 - [Karpenter: Amazon EKS Best Practice and Cloud Cost Optimization]
 - [Run Kubernetes Clusters for Less with Amazon EC2 Spot and Karpenter]
 - [Karpenter best practices]
+- [Karpenter AKS Production Issues: Why Auto Node Upgrades Caused Our Outage]
 
 <!--
   Reference
@@ -129,6 +130,7 @@ Requirements:
 [website]: https://karpenter.sh/
 
 <!-- Others -->
+[Karpenter AKS Production Issues: Why Auto Node Upgrades Caused Our Outage]: https://medium.com/@sridharcloud/karpenter-aks-production-issues-why-auto-node-upgrades-caused-our-outage-498da5fc140c
 [Karpenter best practices]: https://docs.aws.amazon.com/eks/latest/best-practices/karpenter.html
 [Karpenter EKS workshop]: https://www.eksworkshop.com/docs/autoscaling/compute/karpenter/
 [Karpenter provider for AWS]: https://github.com/aws/karpenter-provider-aws
diff --git a/knowledge base/kubernetes/kubecost.md b/knowledge base/kubernetes/kubecost.md
index 1c54ba0..a849de0 100644
--- a/knowledge base/kubernetes/kubecost.md	
+++ b/knowledge base/kubernetes/kubecost.md	
@@ -2,6 +2,8 @@
 
 Monitoring application providing real-time cost visibility and insights.
 
+Built on top of [OpenCost].
+
 1. [TL;DR](#tldr)
 1. [Further readings](#further-readings)
    1. [Sources](#sources)
@@ -57,6 +59,7 @@ kubectl --namespace 'kubecost' port-forward 'svc/kubecost-cost-analyzer' '9090'
 
 - [Website]
 - [Codebase]
+- [OpenCost]
 
 ### Sources
 
@@ -70,6 +73,8 @@ kubectl --namespace 'kubecost' port-forward 'svc/kubecost-cost-analyzer' '9090'
 
 <!-- In-article sections -->
 <!-- Knowledge base -->
+[OpenCost]: opencost.md
+
 <!-- Files -->
 <!-- Upstream -->
 [Amazon EKS Integration]: https://www.ibm.com/docs/en/kubecost/self-hosted/2.x?topic=installations-amazon-eks-integration
diff --git a/knowledge base/kubernetes/opencost.md b/knowledge base/kubernetes/opencost.md
index ee59bf7..2f79a3c 100644
--- a/knowledge base/kubernetes/opencost.md	
+++ b/knowledge base/kubernetes/opencost.md	
@@ -2,6 +2,8 @@
 
 Monitoring application providing real-time cost visibility and insights.
 
+Used as base by [KubeCost].
+
 1. [TL;DR](#tldr)
 1. [Further readings](#further-readings)
    1. [Sources](#sources)
@@ -64,6 +66,7 @@ open 'http://localhost:9090'
 
 - [Website]
 - [Codebase]
+- [KubeCost]
 
 ### Sources
 
@@ -78,6 +81,7 @@ open 'http://localhost:9090'
 
 <!-- In-article sections -->
 <!-- Knowledge base -->
+[KubeCost]: kubecost.md
 [Prometheus]: ../prometheus/README.md
 
 <!-- Files -->