diff --git a/javaxval/README.md b/javaxval/README.md
index 3153546c7d..3a975022ad 100644
--- a/javaxval/README.md
+++ b/javaxval/README.md
@@ -9,3 +9,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Java Bean Validation Basics](http://www.baeldung.com/javax-validation)
 - [Validating Container Elements with Bean Validation 2.0](http://www.baeldung.com/bean-validation-container-elements)
 - [Method Constraints with Bean Validation 2.0](http://www.baeldung.com/javax-validation-method-constraints)
+- [Difference Between @NotNull, @NotEmpty, and @NotBlank Constraints in Bean Validation](https://www.baeldung.com/java-bean-validation-not-null-empty-blank)