Amazon.com: Ethernet Shield WizNet W5100 R3 Network Lan Board UNO Mega 2560 Duem for Arduino : Electronics
Amazon.com: Mini W5100 LAN Ethernet Shield Network Board Module for Arduino R3 W5100 3.3V Compatible for Arduino Ethernet UNO Mega 2560 : Electronics
Amazon.com: SunFounder Ethernet Shield W5100 Compatible with Arduino UNO R3 Mega 2560 1280 A057 : Electronics
Amazon.com: KKSB Arduino Case | Arduino Mega Case | Arduino UNO Case | Space for Arduino Ethernet Shield : Electronics
Ethernet Shield w/MicroSD Card Reader for Arduino
Amazon.com: DEVMO W5100 Ethernet Network Shield LAN for Ar-duino Expansion Board Module with SD Card Slot Compatible with Ar-duino UNO MEGA2560 UNO R3 ATMega 328 MEGA 1280 : Electronics