Blinking LEDs recources

Although the Christmas are over for today, it would be always great to learn how to build blinking LEDs by yourself. Isn`t it :)?

Here are some recources:

• The "Hello World!" of Physical Computing

• Small c program for led blinking by Nagnath Dhale (it probably is the shortest code in C for blinking)
• Blinking LED with a Prototyping Board
• HowTo: Blinking LEDs

If you need any advice with programming LEDs in C, then maybe I could help.. just let me know:)