diff --git a/ACKNOWLEDGEMENTS.html b/ACKNOWLEDGEMENTS.html
index 014f570d..c5873c9a 100644
--- a/ACKNOWLEDGEMENTS.html
+++ b/ACKNOWLEDGEMENTS.html
@@ -1,6 +1,27 @@
 <h1>Acknowledgements</h1>
 <p>
-    Portions of this Software(Dust3D) may utilize the following copyrighted material, the use of which is hereby acknowledged.
+Portions of this Software(Dust3D) may utilize the following copyrighted material, the use of which is hereby acknowledged.
+And thanks to the reddit users who had encouraged and gave me invaluable advices on the first day of Dust3D, especially:  
+<pre>
+Ardx_5          https://www.reddit.com/user/Ardx_5
+clawjelly       https://www.reddit.com/user/clawjelly
+Mattho          https://www.reddit.com/user/Mattho
+fragileteeth    https://www.reddit.com/user/fragileteeth
+MoffKalast      https://www.reddit.com/user/MoffKalast
+qotob           https://www.reddit.com/user/qotob
+Pfaeff          https://www.reddit.com/user/Pfaeff
+H4kor           https://www.reddit.com/user/H4kor
+Aphix           https://www.reddit.com/user/Aphix
+qbz             https://www.reddit.com/user/qbz
+humanmanguy     https://www.reddit.com/user/humanmanguy
+Qbit42          https://www.reddit.com/user/Qbit42
+RandomNPC15     https://www.reddit.com/user/RandomNPC15
+a1studmuffin    https://www.reddit.com/user/a1studmuffin
+fragileteeth    https://www.reddit.com/user/fragileteeth
+
+* In the order of reddit website at the time of writing
+https://www.reddit.com/r/gamedev/comments/5iuf3h/i_am_writting_a_3d_monster_model_generate_tool/  
+</pre>
 </p>
 
 <h1>QtAwesome</h1>