Intertoobs. Intarwebs. Series of tubes. Whatever. Connect your Arduino / Freeduino SB to your LAN, WAN, or whole darn Internet!
If you aren't familiar with the Electric Imp, it essentially provides an easy, integrated way to connect almost any hardware device both to other WiFi enabled devices and to internet services.
Here's the official Arduino Ethernet Shield With PoE Module
Sometimes it would be very nice to be able to add connectivity to your Arduino/Freeduino project. The Adafruit Ethernet shield kit lets you add network connectivity!