Hi!
I don't know where the best place for announcements is, so I'll do it here: I created a first version of a library to read the german DCF77 signal. This signal is broadcasted over almost all europe and allows you to receive the official german time.
Read more in this post:
http://gonium.net/md/2006/11/05/arduino-dcf77-radio-clock-receiver/
-Mathias
Yep, this is place for these sorts of announcements. Sounds like a cool library. I'll try to test it out when I'm in Germany later this month.
You might also consider linking to your tutorial from the Arduino playground wiki: http://www.arduino.cc/playground/
The version 0.2 is out, basically fixing the things left out in the first release. I integrated interrupt handling and error checking - you can get the code here:
http://gonium.net/md/2007/01/06/arduino-dcf77-v02-released/
Have fun, -Mathias