diff --git a/core-java-modules/core-java-16/README.md b/core-java-modules/core-java-16/README.md
index 68215b3964..4e428c7fc1 100644
--- a/core-java-modules/core-java-16/README.md
+++ b/core-java-modules/core-java-16/README.md
@@ -2,3 +2,5 @@
 
 - [Collect a Java Stream to an Immutable Collection](https://www.baeldung.com/java-stream-immutable-collection)
 - [Guide to mapMulti in Stream API](https://www.baeldung.com/java-mapmulti)
+- [Collecting Stream Elements into a List in Java](https://www.baeldung.com/java-stream-to-list-collecting)
+- [New Features in Java 16](https://www.baeldung.com/java-16-new-features)
diff --git a/core-java-modules/core-java-lang-4/README.md b/core-java-modules/core-java-lang-4/README.md
index 562be950c0..4546a00fe6 100644
--- a/core-java-modules/core-java-lang-4/README.md
+++ b/core-java-modules/core-java-lang-4/README.md
@@ -8,3 +8,4 @@ This module contains articles about core features in the Java language
 - [Java Objects.hash() vs Objects.hashCode()](https://www.baeldung.com/java-objects-hash-vs-objects-hashcode)
 - [Referencing a Method in Javadoc Comments](https://www.baeldung.com/java-method-in-javadoc)
 - [Tiered Compilation in JVM](https://www.baeldung.com/jvm-tiered-compilation)
+- [Fixing the “Declared package does not match the expected package” Error](https://www.baeldung.com/java-declared-expected-package-error)
diff --git a/core-java-modules/core-java-os/README.md b/core-java-modules/core-java-os/README.md
index 10e04a8ba6..6d477de70a 100644
--- a/core-java-modules/core-java-os/README.md
+++ b/core-java-modules/core-java-os/README.md
@@ -13,5 +13,6 @@ This module contains articles about working with the operating system (OS) in Ja
 - [Pattern Search with Grep in Java](http://www.baeldung.com/grep-in-java)
 - [How to Run a Shell Command in Java](http://www.baeldung.com/run-shell-command-in-java)
 - [Taking Screenshots Using Java](https://www.baeldung.com/java-taking-screenshots)
+- [Java Sound API – Capturing Microphone](https://www.baeldung.com/java-sound-api-capture-mic)
 
 This module uses Java 9, so make sure to have the JDK 9 installed to run it.
diff --git a/core-java-modules/core-java-string-operations-3/README.md b/core-java-modules/core-java-string-operations-3/README.md
index ff6ac51fab..f4cde6104f 100644
--- a/core-java-modules/core-java-string-operations-3/README.md
+++ b/core-java-modules/core-java-string-operations-3/README.md
@@ -5,3 +5,4 @@
 - [Split Java String by Newline](https://www.baeldung.com/java-string-split-by-newline)
 - [Split a String in Java and Keep the Delimiters](https://www.baeldung.com/java-split-string-keep-delimiters)
 - [Validate String as Filename in Java](https://www.baeldung.com/java-validate-filename)
+- [Count Spaces in a Java String](https://www.baeldung.com/java-string-count-spaces)
diff --git a/maven-modules/maven-dependency-management/README.md b/maven-modules/maven-dependency-management/README.md
new file mode 100644
index 0000000000..0abf99d2d3
--- /dev/null
+++ b/maven-modules/maven-dependency-management/README.md
@@ -0,0 +1,3 @@
+### Relevant Articles:
+
+- [Maven dependencyManagement vs. dependencies Tags](https://www.baeldung.com/maven-dependencymanagement-vs-dependencies-tags)
diff --git a/pdf/README.md b/pdf/README.md
index bed468ad24..dd6931ba78 100644
--- a/pdf/README.md
+++ b/pdf/README.md
@@ -7,3 +7,4 @@ This module contains articles about PDF files.
 - [Creating PDF Files in Java](https://www.baeldung.com/java-pdf-creation)
 - [Generating PDF Files Using Thymeleaf](https://www.baeldung.com/thymeleaf-generate-pdf)
 - [Java Convert PDF to Base64](https://www.baeldung.com/java-convert-pdf-to-base64)
+- [HTML to PDF Using OpenPDF](https://www.baeldung.com/java-html-to-pdf)
diff --git a/spring-5-reactive-client/README.md b/spring-5-reactive-client/README.md
index 154a3cab0b..e485897d27 100644
--- a/spring-5-reactive-client/README.md
+++ b/spring-5-reactive-client/README.md
@@ -11,3 +11,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Mocking a WebClient in Spring](https://www.baeldung.com/spring-mocking-webclient)
 - [Spring WebClient Filters](https://www.baeldung.com/spring-webclient-filters)
 - [Get List of JSON Objects with WebClient](https://www.baeldung.com/spring-webclient-json-list)
+- [Upload a File with WebClient](https://www.baeldung.com/spring-webclient-upload-file)
diff --git a/spring-aop/README.md b/spring-aop/README.md
index 707e0fbf81..b49c2bd457 100644
--- a/spring-aop/README.md
+++ b/spring-aop/README.md
@@ -13,3 +13,4 @@ This module contains articles about Spring aspect oriented programming (AOP)
 - [When Does Java Throw UndeclaredThrowableException?](https://www.baeldung.com/java-undeclaredthrowableexception)
 - [Get Advised Method Info in Spring AOP](https://www.baeldung.com/spring-aop-get-advised-method-info)
 - [Advise Methods on Annotated Classes With AspectJ](https://www.baeldung.com/aspectj-advise-methods)
+- [Joinpoint vs. ProceedingJoinPoint in AspectJ](https://www.baeldung.com/aspectj-joinpoint-proceedingjoinpoint)