diff --git a/README.md b/README.md
index 45a275d..561aed6 100644
--- a/README.md
+++ b/README.md
@@ -19,3 +19,9 @@ To run the telnet server, use:
     sudo ./nyancat.py
 
 (The server will only try to start on port 23, so you must be root)
+
+## Licenses, References, etc.
+
+The original source of the Nyancat animation is [prguitarman](http://www.prguitarman.com/index.php?id=348).
+
+The code provided here is provided under the terms of the [NCSA license](http://en.wikipedia.org/wiki/University_of_Illinois/NCSA_Open_Source_License).