diff --git a/core-java-collections/README.md b/core-java-collections/README.md
index aef640634e..e366232f74 100644
--- a/core-java-collections/README.md
+++ b/core-java-collections/README.md
@@ -55,3 +55,4 @@
 - [Sort a HashMap in Java](https://www.baeldung.com/java-hashmap-sort)
 - [Finding the Highest Value in a Java Map](https://www.baeldung.com/java-find-map-max)
 - [Operating on and Removing an Item from Stream](https://www.baeldung.com/java-use-remove-item-stream)
+- [An Introduction to Synchronized Java Collections](https://www.baeldung.com/java-synchronized-collections)
diff --git a/spring-boot/README.MD b/spring-boot/README.MD
index 192c4f9fed..aed2d2c5f8 100644
--- a/spring-boot/README.MD
+++ b/spring-boot/README.MD
@@ -34,3 +34,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Introduction to Chaos Monkey](https://www.baeldung.com/spring-boot-chaos-monkey)
 - [Spring Component Scanning](https://www.baeldung.com/spring-component-scanning)
 - [Load Spring Boot Properties From a JSON File](https://www.baeldung.com/spring-boot-json-properties)
+- [Display Auto-Configuration Report in Spring Boot](https://www.baeldung.com/spring-boot-auto-configuration-report)