diff --git a/spring-cloud-core/src/main/java/org/springframework/cloud/Cloud.java b/spring-cloud-core/src/main/java/org/springframework/cloud/Cloud.java
index 2d5804d..26cbe6b 100644
--- a/spring-cloud-core/src/main/java/org/springframework/cloud/Cloud.java
+++ b/spring-cloud-core/src/main/java/org/springframework/cloud/Cloud.java
@@ -201,9 +201,11 @@ public class Cloud {
      * </pre>
      *
      * <p>
-     * If a there is only a single service of a given type, that service is aliased to the service type. Keys for such properties
-     * start in <code>cloud.services.&lt;service-type&gt;</code>. For example, if there is only a single MySQL service bound to the
-     * application, the service properties will also be exposed starting with '<code>cloud.services.mysql</code>' key: <pre>
+     * If a there is only a single service of a given type (as defined by the {@link ServiceInfo.ServiceLabel} 
+     * annoation's value of the corresponding {@link ServiceInfo} class), that service is aliased 
+     * to the service type. Keys for such properties start in <code>cloud.services.&lt;service-type&gt;</code>. 
+     * For example, if there is only a single MySQL service bound to the application, the service properties 
+     * will also be exposed starting with '<code>cloud.services.mysql</code>' key: <pre>
      * cloud.services.mysql.type = mysql-5.1
      * cloud.services.mysql.plan = free
      * cloud.services.mysql.connection.hostname = ...
diff --git a/spring-cloud-core/src/main/java/org/springframework/cloud/service/ServiceInfo.java b/spring-cloud-core/src/main/java/org/springframework/cloud/service/ServiceInfo.java
index c3f64c1..baebd47 100644
--- a/spring-cloud-core/src/main/java/org/springframework/cloud/service/ServiceInfo.java
+++ b/spring-cloud-core/src/main/java/org/springframework/cloud/service/ServiceInfo.java
@@ -19,6 +19,12 @@ public interface ServiceInfo {
 	
 	/**
 	 * Annotation to mark service label (used in presenting properties) 
+	 * 
+	 * <p>
+	 * If a {@link ServiceInfo} class carries this annotation, it is used categorize
+	 * similar services together for the purpose of exposing cloud properties. 
+	 * </p>
+	 * 
 	 * @see Cloud#getCloudProperties()
 	 */
 	@Inherited