diff --git a/doc/useful_addresses.html b/doc/useful_addresses.html
index f910c947..d849d4dc 100644
--- a/doc/useful_addresses.html
+++ b/doc/useful_addresses.html
@@ -84,6 +84,8 @@ wmlm78 and wmsensors are graphical extensions of lm_sensors, which can be docked
 Manager.
 <LI><A HREF="http://www.wantree.com.au/~brendy/klm_home.html">klm</A>
 <BR>Brendon Humphrey's KDE display program for lm_sensors.
+<LI><A HREF="http://www.multiweb.nl/~s.jonker/">GLS</A>
+<BR>Stijn Jonker's program to make nice graphs of the lm_sensors output.
 </UL>
 <LI>Other things
 <UL>