diff --git a/blacklist.txt b/blacklist.txt
index 90821561..79c7c719 100644
--- a/blacklist.txt
+++ b/blacklist.txt
@@ -37,7 +37,8 @@
 # - on-acquire (an item enters a player's inventory via some method)
 #
 # Actions (for events):
-# - deny (deny completely)
+# - deny (deny completely, used blacklist mode)
+# - allow (used in whitelist mode)
 # - notify (notify admins)
 # - log (log to console/file/database)
 # - tell (tell a player that that's not allowed)
diff --git a/config.yml b/config.yml
index 1e2a4c31..20aad817 100644
--- a/config.yml
+++ b/config.yml
@@ -91,6 +91,7 @@ iconomy:
     buy-on-claim-price: 2
 
 blacklist:
+    use-as-whitelist: off
     logging:
         console:
             enable: on
diff --git a/src/com/sk89q/worldguard/blacklist/Blacklist.java b/src/com/sk89q/worldguard/blacklist/Blacklist.java
index 5134fdcf..ee6ae66c 100644
--- a/src/com/sk89q/worldguard/blacklist/Blacklist.java
+++ b/src/com/sk89q/worldguard/blacklist/Blacklist.java
@@ -60,6 +60,14 @@ public abstract class Blacklist {
     Map<String,BlacklistTrackedEvent> lastAffected =
             new HashMap<String,BlacklistTrackedEvent>();
 
+
+    private boolean useAsWhitelist;
+
+    public Blacklist(Boolean useAsWhitelist)
+    {
+        this.useAsWhitelist = useAsWhitelist;
+    }
+
     /**
      * Returns whether the list is empty.
      * 
@@ -100,7 +108,7 @@ public boolean check(BlacklistEvent event, boolean forceRepeat, boolean silent)
         }
         boolean ret = true;
         for (BlacklistEntry entry : entries) {
-            if (!entry.check(event, forceRepeat, silent)) {
+            if (!entry.check(useAsWhitelist, event, forceRepeat, silent)) {
                 ret = false;
             }
         }
diff --git a/src/com/sk89q/worldguard/blacklist/BlacklistEntry.java b/src/com/sk89q/worldguard/blacklist/BlacklistEntry.java
index 48199365..5dd56151 100644
--- a/src/com/sk89q/worldguard/blacklist/BlacklistEntry.java
+++ b/src/com/sk89q/worldguard/blacklist/BlacklistEntry.java
@@ -271,7 +271,7 @@ private String[] getActions(BlacklistEvent event) {
      * @param silent
      * @return
      */
-    public boolean check(BlacklistEvent event, boolean forceRepeat, boolean silent) {
+    public boolean check(Boolean useAsWhitelist, BlacklistEvent event, boolean forceRepeat, boolean silent) {
         LocalPlayer player = event.getPlayer();
         
         if (shouldIgnore(player)) {
@@ -293,11 +293,13 @@ public boolean check(BlacklistEvent event, boolean forceRepeat, boolean silent)
         }
 
         String actions[] = getActions(event);
-        boolean ret = true;
+
+        
+        boolean ret = useAsWhitelist ? false : true;
         
         // Nothing to do
         if (actions == null) {
-            return true;
+            return useAsWhitelist ? false : true;
         }
         
         for (String action : actions) {
@@ -309,6 +311,14 @@ public boolean check(BlacklistEvent event, boolean forceRepeat, boolean silent)
                 
                 ret = false;
 
+            // Allow
+            } else if (action.equalsIgnoreCase("allow")) {
+                if (silent) {
+                    return true;
+                }
+
+                ret = true;
+
             // Kick
             } else if (action.equalsIgnoreCase("kick")) {
                 if (silent) {
diff --git a/src/com/sk89q/worldguard/bukkit/BukkitBlacklist.java b/src/com/sk89q/worldguard/bukkit/BukkitBlacklist.java
index 14b419b4..4d92aeed 100644
--- a/src/com/sk89q/worldguard/bukkit/BukkitBlacklist.java
+++ b/src/com/sk89q/worldguard/bukkit/BukkitBlacklist.java
@@ -25,7 +25,8 @@
 public class BukkitBlacklist extends Blacklist {
     private WorldGuardPlugin plugin;
     
-    public BukkitBlacklist(WorldGuardPlugin plugin) {
+    public BukkitBlacklist(Boolean useAsWhitelist, WorldGuardPlugin plugin) {
+        super(useAsWhitelist);
         this.plugin = plugin;
     }
     
diff --git a/src/com/sk89q/worldguard/bukkit/WorldGuardWorldConfiguration.java b/src/com/sk89q/worldguard/bukkit/WorldGuardWorldConfiguration.java
index 586443d6..42d87839 100644
--- a/src/com/sk89q/worldguard/bukkit/WorldGuardWorldConfiguration.java
+++ b/src/com/sk89q/worldguard/bukkit/WorldGuardWorldConfiguration.java
@@ -227,6 +227,9 @@ private void loadConfiguration() {
         wp.getGlobalRegionManager().setGlobalFlags(worldName, globalFlags);
 
 
+
+        boolean useBlacklistAsWhitelist = config.getBoolean("blacklist.use-as-whitelist", false);
+
         // Console log configuration
         boolean logConsole = config.getBoolean("blacklist.logging.console.enable", true);
 
@@ -250,7 +253,7 @@ private void loadConfiguration() {
             }
 
             // First load the blacklist data from worldguard-blacklist.txt
-            Blacklist blist = new BukkitBlacklist(wp);
+            Blacklist blist = new BukkitBlacklist(useBlacklistAsWhitelist, wp);
             blist.load(blacklistFile);
 
             // If the blacklist is empty, then set the field to null