diff --git a/core-java-modules/core-java-nio-2/README.md b/core-java-modules/core-java-nio-2/README.md
index ef73159f66..ab54899501 100644
--- a/core-java-modules/core-java-nio-2/README.md
+++ b/core-java-modules/core-java-nio-2/README.md
@@ -9,4 +9,5 @@ This module contains articles about core Java non-blocking input and output (IO)
 - [Introduction to the Java NIO Selector](https://www.baeldung.com/java-nio-selector)
 - [Using Java MappedByteBuffer](https://www.baeldung.com/java-mapped-byte-buffer)
 - [How to Lock a File in Java](https://www.baeldung.com/java-lock-files)
+- [Java NIO DatagramChannel](https://www.baeldung.com/java-nio-datagramchannel)
 - [[<-- Prev]](/core-java-modules/core-java-nio)
diff --git a/core-java-modules/core-java-security-2/README.md b/core-java-modules/core-java-security-2/README.md
index 3f9520b888..684f2504cc 100644
--- a/core-java-modules/core-java-security-2/README.md
+++ b/core-java-modules/core-java-security-2/README.md
@@ -16,4 +16,5 @@ This module contains articles about core Java Security
 - [Java AES Encryption and Decryption](https://www.baeldung.com/java-aes-encryption-decryption)
 - [InvalidAlgorithmParameterException: Wrong IV Length](https://www.baeldung.com/java-invalidalgorithmparameter-exception)
 - [The java.security.egd JVM Option](https://www.baeldung.com/java-security-egd)
+- [RSA in Java](https://www.baeldung.com/java-rsa)
 - More articles: [[<-- prev]](/core-java-modules/core-java-security)
diff --git a/persistence-modules/hibernate-annotations/README.md b/persistence-modules/hibernate-annotations/README.md
index 393cf82bfd..7d7740a069 100644
--- a/persistence-modules/hibernate-annotations/README.md
+++ b/persistence-modules/hibernate-annotations/README.md
@@ -8,3 +8,4 @@ This module contains articles about Annotations used in Hibernate.
 - [Difference Between @JoinColumn and mappedBy](https://www.baeldung.com/jpa-joincolumn-vs-mappedby)
 - [Hibernate One to Many Annotation Tutorial](https://www.baeldung.com/hibernate-one-to-many)
 - [Hibernate @WhereJoinTable Annotation](https://www.baeldung.com/hibernate-wherejointable)
+- [Usage of the Hibernate @LazyCollection Annotation](https://www.baeldung.com/hibernate-lazycollection)
diff --git a/spring-cloud/spring-cloud-sentinel/README.md b/spring-cloud/spring-cloud-sentinel/README.md
new file mode 100644
index 0000000000..6b12fea608
--- /dev/null
+++ b/spring-cloud/spring-cloud-sentinel/README.md
@@ -0,0 +1,3 @@
+### Relevant Articles:
+
+- [Introduction to Alibaba Sentinel](https://www.baeldung.com/java-sentinel-intro)