README in SystemTimer-1.0 vs README in SystemTimer-1.1

- old
+ new

@@ -3,10 +3,15 @@
 System Timer, a timer based on underlying SIGALRM system timers, is a
 solution to Ruby processes which hang beyond the time limit when accessing
 external resources. This is useful when timeout.rb, which relies on green
 threads, does not work consistently.
 
+More background on:
+
+* http://ph7spot.com/articles/system_timer 
+* http://davidvollbracht.com/2008/6/2/30-days-of-teach-day-1-systemtimer
+
 == Usage
 
   require 'systemtimer'
 
   SystemTimer.timeout_after(5) do
@@ -56,9 +61,11 @@
 in particular MySQL.
 
 This implementation is not intended to be drop-in replacement to
 timeout.rb, just a way to wrap sensitive call to system resources.   
 
+You can find more details on SystemTimer and how to use it 
+at http://ph7spot.com/articles/system_timer 
 
 == License
 
 (The Ruby License)
 