diff --git a/doc/realworld.html b/doc/realworld.html
index 9b6d7386fbfb33566de582052be6da3df8f82650..c0570e3823177f3f2a4a5d8df3e0dc7142a21ca6 100644
--- a/doc/realworld.html
+++ b/doc/realworld.html
@@ -104,6 +104,7 @@
       <li><a href="http://www.solidshops.com/">SolidShops</a> (hosted e-commerce platform)</li>
       <li><a href="http://sqlfiddle.com">SQLFiddle</a> (SQL playground)</li>
       <li><a href="https://thefiletree.com">The File Tree</a> (collab editor)</li>
+      <li><a href="http://www.mapbox.com/tilemill/">Tilemill</a> (map design tool)</li>
       <li><a href="http://www.toolsverse.com/products/data-explorer/">Toolsverse Data Explorer</a> (database management)</li>
       <li><a href="http://enjalot.com/tributary/2636296/sinwaves.js">Tributary</a> (augmented editing)</li>
       <li><a href="http://blog.englard.net/post/39608000629/codeintumblr">Tumblr code highlighting shim</a></li>