diff --git a/Documentation/hwmon/pc87360 b/Documentation/hwmon/pc87360
index 89a8fcfa78d..cbac32b59c8 100644
--- a/Documentation/hwmon/pc87360
+++ b/Documentation/hwmon/pc87360
@@ -5,12 +5,7 @@ Supported chips:
   * National Semiconductor PC87360, PC87363, PC87364, PC87365 and PC87366
     Prefixes: 'pc87360', 'pc87363', 'pc87364', 'pc87365', 'pc87366'
     Addresses scanned: none, address read from Super I/O config space
-    Datasheets:
-        http://www.national.com/pf/PC/PC87360.html
-        http://www.national.com/pf/PC/PC87363.html
-        http://www.national.com/pf/PC/PC87364.html
-        http://www.national.com/pf/PC/PC87365.html
-        http://www.national.com/pf/PC/PC87366.html
+    Datasheets: No longer available
 
 Authors: Jean Delvare <khali@linux-fr.org>
 
diff --git a/Documentation/hwmon/pc87427 b/Documentation/hwmon/pc87427
index 9a0708f9f49..d1ebbe510f3 100644
--- a/Documentation/hwmon/pc87427
+++ b/Documentation/hwmon/pc87427
@@ -5,7 +5,7 @@ Supported chips:
   * National Semiconductor PC87427
     Prefix: 'pc87427'
     Addresses scanned: none, address read from Super I/O config space
-    Datasheet: http://www.winbond.com.tw/E-WINBONDHTM/partner/apc_007.html
+    Datasheet: No longer available
 
 Author: Jean Delvare <khali@linux-fr.org>