diff --git a/core-java-modules/core-java-9/README.md b/core-java-modules/core-java-9/README.md
index 8203755417..0fe2b857a4 100644
--- a/core-java-modules/core-java-9/README.md
+++ b/core-java-modules/core-java-9/README.md
@@ -11,3 +11,4 @@ This module contains articles about Java 9 core features
 - [Immutable ArrayList in Java](https://www.baeldung.com/java-immutable-list)
 - [Easy Ways to Write a Java InputStream to an OutputStream](https://www.baeldung.com/java-inputstream-to-outputstream)
 - [Private Methods in Java Interfaces](https://www.baeldung.com/java-interface-private-methods)
+- [Java Scanner useDelimiter with Examples](https://www.baeldung.com/java-scanner-usedelimiter)
diff --git a/core-java-modules/core-java-networking-3/README.md b/core-java-modules/core-java-networking-3/README.md
index 21f939b43e..03c2dcfa89 100644
--- a/core-java-modules/core-java-networking-3/README.md
+++ b/core-java-modules/core-java-networking-3/README.md
@@ -11,4 +11,5 @@ This module contains articles about networking in Java
 - [Find the IP Address of a Client Connected to a Server](https://www.baeldung.com/java-client-get-ip-address)
 - [Unix Domain Socket in Java 16](https://www.baeldung.com/java-unix-domain-socket)
 - [Get the IP Address of the Current Machine Using Java](https://www.baeldung.com/java-get-ip-address)
+- [Get Domain Name From Given URL in Java](https://www.baeldung.com/java-domain-name-from-url)
 - [[<-- Prev]](/core-java-modules/core-java-networking-2)
diff --git a/core-java-modules/core-java-nio-2/README.md b/core-java-modules/core-java-nio-2/README.md
index c405cb7c77..527600779a 100644
--- a/core-java-modules/core-java-nio-2/README.md
+++ b/core-java-modules/core-java-nio-2/README.md
@@ -13,4 +13,5 @@ This module contains articles about core Java non-blocking input and output (IO)
 - [Java – Path vs File](https://www.baeldung.com/java-path-vs-file)
 - [What Is the Difference Between NIO and NIO.2?](https://www.baeldung.com/java-nio-vs-nio-2)
 - [Guide to ByteBuffer](https://www.baeldung.com/java-bytebuffer)
+- [Find Files that Match Wildcard Strings in Java](https://www.baeldung.com/java-files-match-wildcard-strings)
 - [[<-- Prev]](/core-java-modules/core-java-nio)
diff --git a/core-java-modules/core-java-reflection-2/README.md b/core-java-modules/core-java-reflection-2/README.md
index c1966dd63d..a3c9d00b0a 100644
--- a/core-java-modules/core-java-reflection-2/README.md
+++ b/core-java-modules/core-java-reflection-2/README.md
@@ -7,3 +7,4 @@
 - [Invoking a Private Method in Java](https://www.baeldung.com/java-call-private-method)
 - [Finding All Classes in a Java Package](https://www.baeldung.com/java-find-all-classes-in-package)
 - [Invoke a Static Method Using Java Reflection API](https://www.baeldung.com/java-invoke-static-method-reflection)
+- [What Is the JDK com.sun.proxy.$Proxy Class?](https://www.baeldung.com/jdk-com-sun-proxy)
diff --git a/core-java-modules/core-java-string-operations-4/README.md b/core-java-modules/core-java-string-operations-4/README.md
index 0e6c9e7e2c..ff6d887154 100644
--- a/core-java-modules/core-java-string-operations-4/README.md
+++ b/core-java-modules/core-java-string-operations-4/README.md
@@ -6,4 +6,5 @@
 - [Split a String Every n Characters in Java](https://www.baeldung.com/java-string-split-every-n-characters)
 - [String equals() Vs contentEquals() in Java](https://www.baeldung.com/java-string-equals-vs-contentequals)
 - [Check if a String Ends with a Certain Pattern in Java](https://www.baeldung.com/java-string-ends-pattern)
+- [Check if a Character is a Vowel in Java](https://www.baeldung.com/java-check-character-vowel)
 
diff --git a/javaxval/README.md b/javaxval/README.md
index 24c2cf98c5..8fc5b07ccf 100644
--- a/javaxval/README.md
+++ b/javaxval/README.md
@@ -12,3 +12,4 @@ This module contains articles about Bean Validation.
 - [Validations for Enum Types](https://www.baeldung.com/javax-validations-enums)
 - [Guide to ParameterMessageInterpolator](https://www.baeldung.com/hibernate-parametermessageinterpolator)
 - [Hibernate Validator Annotation Processor in Depth](https://www.baeldung.com/hibernate-validator-annotation-processor)
+- [Constraint Composition with Bean Validation](https://www.baeldung.com/java-bean-validation-constraint-composition)
diff --git a/persistence-modules/core-java-persistence-2/README.md b/persistence-modules/core-java-persistence-2/README.md
index 6622f9733f..4bc7d8b663 100644
--- a/persistence-modules/core-java-persistence-2/README.md
+++ b/persistence-modules/core-java-persistence-2/README.md
@@ -7,3 +7,4 @@
 - [A Guide to Auto-Commit in JDBC](https://www.baeldung.com/java-jdbc-auto-commit)
 - [JDBC Connection Status](https://www.baeldung.com/jdbc-connection-status)
 - [Get the Number of Rows in a ResultSet](https://www.baeldung.com/java-resultset-number-of-rows)
+- [Converting a JDBC ResultSet to JSON in Java](https://www.baeldung.com/java-jdbc-convert-resultset-to-json)
diff --git a/persistence-modules/read-only-transactions/README.md b/persistence-modules/read-only-transactions/README.md
index 90a86e551e..8f3898f217 100644
--- a/persistence-modules/read-only-transactions/README.md
+++ b/persistence-modules/read-only-transactions/README.md
@@ -1,8 +1,8 @@
 ### Relevant Articles:
--
+- [Using Transactions for Read-Only Operations](https://www.baeldung.com/spring-transactions-read-only)
 
 ### Instructions
 To run the `com.baeldung.read_only_transactions.TransactionSetupIntegrationTest` first follow the steps described next:
 - run the command `docker-compose -f docker-compose-mysql.yml up`
 - Open a SQL client of your preference and execute the `create.sql` script.
-- You can check the mysql logs using `tail -f mysql/${name of de log file created}.log`
\ No newline at end of file
+- You can check the mysql logs using `tail -f mysql/${name of de log file created}.log`
diff --git a/persistence-modules/spring-boot-persistence-mongodb-2/README.md b/persistence-modules/spring-boot-persistence-mongodb-2/README.md
index 9169e09813..ba27436109 100644
--- a/persistence-modules/spring-boot-persistence-mongodb-2/README.md
+++ b/persistence-modules/spring-boot-persistence-mongodb-2/README.md
@@ -1,4 +1,5 @@
 # Relevant Articles
 
 - [Logging MongoDB Queries with Spring Boot](https://www.baeldung.com/spring-boot-mongodb-logging)
-- More articles: [[<--prev]](../spring-boot-persistence-mongodb)
\ No newline at end of file
+- [Configure MongoDB Collection Name for a Class in Spring Data](https://www.baeldung.com/spring-data-mongodb-collection-name)
+- More articles: [[<--prev]](../spring-boot-persistence-mongodb)
diff --git a/persistence-modules/spring-data-jpa-query-3/README.md b/persistence-modules/spring-data-jpa-query-3/README.md
index 920ec40965..268bce96ca 100644
--- a/persistence-modules/spring-data-jpa-query-3/README.md
+++ b/persistence-modules/spring-data-jpa-query-3/README.md
@@ -5,6 +5,7 @@ This module contains articles about querying data using Spring Data JPA.
 ### Relevant Articles: 
 - [Query Entities by Dates and Times with Spring Data JPA](https://www.baeldung.com/spring-data-jpa-query-by-date)
 - [JPA and Hibernate – Criteria vs. JPQL vs. HQL Query](https://www.baeldung.com/jpql-hql-criteria-query)
+- [Joining Tables With Spring Data JPA Specifications](https://www.baeldung.com/spring-jpa-joining-tables)
 - More articles: [[<-- prev]](../spring-data-jpa-query-2)
 
 ### Eclipse Config 
diff --git a/spring-boot-modules/spring-boot-keycloak/README.md b/spring-boot-modules/spring-boot-keycloak/README.md
index 7a1323d10e..cde11df0fa 100644
--- a/spring-boot-modules/spring-boot-keycloak/README.md
+++ b/spring-boot-modules/spring-boot-keycloak/README.md
@@ -9,3 +9,4 @@ This module contains articles about Keycloak in Spring Boot projects.
 - [Keycloak User Self-Registration](https://www.baeldung.com/keycloak-user-registration)
 - [Customizing Themes for Keycloak](https://www.baeldung.com/spring-keycloak-custom-themes)
 - [Securing SOAP Web Services With Keycloak](https://www.baeldung.com/soap-keycloak)
+- [Get Keycloak User ID in Spring](https://www.baeldung.com/spring-keycloak-get-user-id)