You can connect your Arduino to Inernet with new online service KSduino for free: http://ksduino.org
When you are connected you can monitor and control your Arduino, send values between Arduinos connected to Internet. See welcome article to more info about KSduino: http://blog.ksduino.org/post/37480815224/welcome-to-ksduino
Read about KSduino internal (structure, protocols, etc.) in the 'How KSduino works' article: http://blog.ksduino.org/post/37944359140/how-ksduino-works
KSduino has HELP topic with articles helps to connect your device and add any parameters. See 'How to connect your device to the KSduino Device Network?': http://help.ksduino.org/post/36586795328/how-to-connect-your-device-to-the-ksduino-device.
Or you can start your connection from our home page: http://ksduino.org