diff --git a/Plugin/src/main/java/com/gmail/filoghost/holograms/api/HolographicDisplaysAPI.java b/Plugin/src/main/java/com/gmail/filoghost/holograms/api/HolographicDisplaysAPI.java
index 43192677..eceeb887 100644
--- a/Plugin/src/main/java/com/gmail/filoghost/holograms/api/HolographicDisplaysAPI.java
+++ b/Plugin/src/main/java/com/gmail/filoghost/holograms/api/HolographicDisplaysAPI.java
@@ -15,8 +15,12 @@
 package com.gmail.filoghost.holograms.api;
 
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.entity.Entity;
@@ -39,17 +43,28 @@ import com.gmail.filoghost.holographicdisplays.util.Validator;
 @Deprecated
 public class HolographicDisplaysAPI {
 	
+	private static Set<String> notifiedPlugins = new HashSet<String>();
+	
+	private static void notifyOldAPI(Plugin plugin) {
+		if (notifiedPlugins.add(plugin.getName())) {
+			Bukkit.getConsoleSender().sendMessage(ChatColor.RED + "[Holographic Displays] The plugin \"" + plugin.getName() + "\" is still using the old API of Holographic Displays. "
+				+ "Please notify the author and ask them to update it, the old API will be removed soon.");
+		}
+	}
+	
 	@Deprecated
-	public static Hologram createHologram(Plugin plugin, Location source, String... lines) {		
+	public static Hologram createHologram(Plugin plugin, Location source, String... lines) {
+		notifyOldAPI(plugin);
 		CraftHologram hologram = (CraftHologram) BackendAPI.getImplementation().createHologram(plugin, source);
 		for (String line : lines) {
 			hologram.appendTextLine(line);
 		}
 		return hologram;
 	}
-	
+
 	@Deprecated
 	public static FloatingItem createFloatingItem(Plugin plugin, Location source, ItemStack itemstack) {
+		notifyOldAPI(plugin);
 		Validator.notNull(itemstack, "itemstack");
 		Validator.isTrue(itemstack.getType() != Material.AIR, "itemstack cannot be AIR");
 		
@@ -60,6 +75,7 @@ public class HolographicDisplaysAPI {
 	
 	@Deprecated
 	public static Hologram createIndividualHologram(Plugin plugin, Location source, Player whoCanSee, String... lines) {
+		notifyOldAPI(plugin);
 		List<Player> whoCanSeeList = new ArrayList<Player>();
 		whoCanSeeList.add(whoCanSee);
 		return createIndividualHologram(plugin, source, whoCanSeeList, lines);
@@ -67,7 +83,7 @@ public class HolographicDisplaysAPI {
 	
 	@Deprecated
 	public static Hologram createIndividualHologram(Plugin plugin, Location source, List<Player> whoCanSee, String... lines) {
-		
+		notifyOldAPI(plugin);
 		Validator.notNull(plugin, "plugin");
 		Validator.notNull(source, "source");
 		Validator.notNull(source.getWorld(), "source's world");
@@ -90,6 +106,7 @@ public class HolographicDisplaysAPI {
 	
 	@Deprecated
 	public static FloatingItem createIndividualFloatingItem(Plugin plugin, Location source, Player whoCanSee, ItemStack itemstack) {
+		notifyOldAPI(plugin);
 		List<Player> whoCanSeeList = new ArrayList<Player>();
 		whoCanSeeList.add(whoCanSee);
 		return createIndividualFloatingItem(plugin, source, whoCanSeeList, itemstack);
@@ -97,7 +114,7 @@ public class HolographicDisplaysAPI {
 	
 	@Deprecated
 	public static FloatingItem createIndividualFloatingItem(Plugin plugin, Location source, List<Player> whoCanSee, ItemStack itemstack) {
-		
+		notifyOldAPI(plugin);
 		Validator.notNull(plugin, "plugin cannot be null");
 		Validator.notNull(source, "source cannot be null");
 		Validator.notNull(source.getWorld(), "source's world cannot be null");
@@ -119,6 +136,7 @@ public class HolographicDisplaysAPI {
 	
 	@Deprecated
 	public static Hologram[] getHolograms(Plugin plugin) {
+		notifyOldAPI(plugin);
 		Validator.notNull(plugin, "plugin cannot be null");
 		
 		List<Hologram> pluginHolograms = Utils.newList();
@@ -133,6 +151,7 @@ public class HolographicDisplaysAPI {
 	
 	@Deprecated
 	public static FloatingItem[] getFloatingItems(Plugin plugin) {
+		notifyOldAPI(plugin);
 		Validator.notNull(plugin, "plugin cannot be null");
 		return new FloatingItem[0];
 	}