diff --git a/CapacitiveSensor.cpp b/CapacitiveSensor.cpp
index 4447847..6ad445d 100644
--- a/CapacitiveSensor.cpp
+++ b/CapacitiveSensor.cpp
@@ -1,7 +1,10 @@
 /*
  CapacitiveSense.h v.04 - Capacitive Sensing Library for 'duino / Wiring
+ https://github.com/PaulStoffregen/CapacitiveSensor
+ http://www.pjrc.com/teensy/td_libs_CapacitiveSensor.html
+ http://playground.arduino.cc/Main/CapacitiveSensor
  Copyright (c) 2009 Paul Bagder  All right reserved.
- Version 05 by Paul Stoffregen - Support Teensy 3.0, 3.1
+ Version 05 by Paul Stoffregen - Support non-AVR board: Teensy 3.x, Arduino Due
  Version 04 by Paul Stoffregen - Arduino 1.0 compatibility, issue 146 fix
  vim: set ts=4:
  */
diff --git a/CapacitiveSensor.h b/CapacitiveSensor.h
index dc686fb..1cebd6b 100644
--- a/CapacitiveSensor.h
+++ b/CapacitiveSensor.h
@@ -1,6 +1,10 @@
 /*
   CapacitiveSense.h v.04 - Capacitive Sensing Library for 'duino / Wiring
+  https://github.com/PaulStoffregen/CapacitiveSensor
+  http://www.pjrc.com/teensy/td_libs_CapacitiveSensor.html
+  http://playground.arduino.cc/Main/CapacitiveSensor
   Copyright (c) 2008 Paul Bagder  All rights reserved.
+  Version 05 by Paul Stoffregen - Support non-AVR board: Teensy 3.x, Arduino Due
   Version 04 by Paul Stoffregen - Arduino 1.0 compatibility, issue 146 fix
   vim: set ts=4:
 */