It's always great to see more examples that show how easy it is to send data from an Arduino across the Internet without much effort, and this example by Instructables member ezoom404 is just that.
They show us how to capture data (in this example from a temperature sensor) and send it to Google Docs via an Ethernet-enabled Arduino or compatible board and the "PushingBox" cloud-based notification service. Apart from Google Docs you can create notifications for all manner of platforms and devices, allowing your Arduino to alert you directly of a pre-determined situation.
When putting together your next Internet-enabled Arduino or AVR project - save time, space and money with the Freetronics EtherTen . Apart from being fully Arduino Uno-compatible , it has onboard Ethernet, microSD socket, full USB interface (so you don't need a costly FTDI cable just to upload a sketch!) and supports optional Power-over-Ethernet .