Arduino WebVisitors blinker
Burn this code to your Arduino. Connect a LED light to pin 12 and ground it. Connect your Arduino to your web server through USB. Log in to your web server and type: “sudo chmod 666 /dev/ttyUSB0″. Add this PHP code to your website header. Enjoy!
   Arduino WebVisitors blinker
See more on Arduino WebVisitors blinker website
dimme.net