diff --git a/development.html b/development.html
index 96e986f..d248625 100644
--- a/development.html
+++ b/development.html
@@ -8,3 +8,6 @@ <h3>NLP</h3>
 a. <a href="https://github.com/mimno/Mallet">Mallet</a> <br>
 b. <a href="https://yale-lily.github.io/">Language, Information and Learning at YALE (LILY)</a>
 
+<h3>Software</h3>
+a. <a href="usign.html">Software for Collecting User Preferences</a> <br>
+