diff --git a/doc/useful_addresses.html b/doc/useful_addresses.html
index f7a02ffc..8780db91 100644
--- a/doc/useful_addresses.html
+++ b/doc/useful_addresses.html
@@ -45,8 +45,9 @@ SMBus</li>
 
 <ul>
 <li>
-<a href="http://www.sbs-forum.org/specs/index.html">SMBus specification
+<a href="http://www.smbus.org/specs/index.html">SMBus specification
 documents</a></li>
+<br> Includes version 1.1 and version 2.0 documents.
 </ul>
 
 <li>