Index: /lm-sensors/trunk/doc/useful_addresses.html
===================================================================
--- /lm-sensors/trunk/doc/useful_addresses.html	(revision 4157)
+++ /lm-sensors/trunk/doc/useful_addresses.html	(revision 4226)
@@ -317,4 +317,8 @@
 		hardware monitoring INcompatibility guide</a>
 		<br />A list of chips that don't work well under Linux.</li>
+	<li><a href="http://www.analog.com/library/analogDialogue/archives/38-02/fan_speed.html">Why
+		and how to control fan speed for cooling electronic equipment</a>
+		<br />A comprehensive article by Mary Burke comparing fan speed
+		control methods</li>
 	</ul>
 </li>