diff --git a/src/fr/devinsy/statoolinfos/checker/PropertyChecker.java b/src/fr/devinsy/statoolinfos/checker/PropertyChecker.java
index 6de8586..f68d904 100644
--- a/src/fr/devinsy/statoolinfos/checker/PropertyChecker.java
+++ b/src/fr/devinsy/statoolinfos/checker/PropertyChecker.java
@@ -148,7 +148,7 @@ public class PropertyChecker
         this.serviceRules.add("service.logo", URL, PropertyMode.WISHED);
         this.serviceRules.add("service.contact.url", URL, PropertyMode.WISHED);
         this.serviceRules.add("service.contact.email", EMAIL, PropertyMode.WISHED);
-        this.serviceRules.add("^service\\.socialnetworks\\.\\S+$", URL, PropertyMode.WISHED);
+        this.serviceRules.add("^service\\.socialnetworks\\.\\S+$", URL, PropertyMode.OPTIONAL);
         this.serviceRules.add("service.legal.url", URL, PropertyMode.WISHED);
         this.serviceRules.add("service.guide.user", URL, PropertyMode.WISHED);
         this.serviceRules.add("service.guide.technical", URL, PropertyMode.WISHED);
@@ -190,7 +190,9 @@ public class PropertyChecker
         result = new PropertyChecks();
 
         //
-        for (PropertyRule rule : rules.getMandatories())
+        PropertyRules requiredRules = rules.getMandatories();
+        requiredRules.addAll(rules.getWished());
+        for (PropertyRule rule : requiredRules)
         {
             boolean ended = false;
             Iterator<String> iterator = lines.iterator();
@@ -214,7 +216,18 @@ public class PropertyChecker
                 else
                 {
                     ended = true;
-                    PropertyCheck check = new PropertyCheck(0, rule.getPathPattern().replaceAll("\\\\.", "."), Status.ERROR, "Propriété manquante");
+                    Status status;
+                    switch (rule.getMode())
+                    {
+                        default:
+                        case MANDATORY:
+                            status = Status.ERROR;
+                        break;
+                        case WISHED:
+                            status = Status.WARNING;
+                        break;
+                    }
+                    PropertyCheck check = new PropertyCheck(0, rule.getPathPattern().replaceAll("\\\\.", "."), status, "Propriété manquante");
                     result.add(check);
                 }
             }
diff --git a/src/fr/devinsy/statoolinfos/checker/PropertyRules.java b/src/fr/devinsy/statoolinfos/checker/PropertyRules.java
index 86e019e..bfe4048 100644
--- a/src/fr/devinsy/statoolinfos/checker/PropertyRules.java
+++ b/src/fr/devinsy/statoolinfos/checker/PropertyRules.java
@@ -124,4 +124,27 @@ public class PropertyRules extends ArrayList<PropertyRule>
         //
         return result;
     }
+
+    /**
+     * Gets the wished.
+     *
+     * @return the wished
+     */
+    public PropertyRules getWished()
+    {
+        PropertyRules result;
+
+        result = new PropertyRules();
+
+        for (PropertyRule rule : this)
+        {
+            if (rule.isWished())
+            {
+                result.add(rule);
+            }
+        }
+
+        //
+        return result;
+    }
 }
\ No newline at end of file