Arduino Ethernet Shield ENC26J60 Kit

Ok, this one may not be everyone's cup of tea, but if you want a cheap Arduino Ethernet shield, then this is definately for you. It comes as a kit of parts and so is also a great kit for practising your soldering skills on. All components are through hole so all you need is a soldering iron and solder. Building is straightforward and doesn't really need any instructions as all the part locations are clearly labeled on the board. However, instructions are available in the links at the bottom of the page.
The Arduino communicates with the Ethernet Shield using the SPI bus. This is on digital pins 11, 12, and 13 on the Uno and pins 50, 51, and 52 on the Mega. An on board jumper allows use of Digital Pin 10 for chip select, or a handy wire pad can link to any other pin for chip select. 
The Ethernet shield uses the Arduino EtherCard library which comes with many example programs. This library assumes (in the example programs) that pin 8 is being used for chip select, so if you are using the default pin 10 on this board, you need to initialise the card using the extra pin parameter...ether.begin(sizeof Ethernet::buffer, mymac, 10)
Supplied with header pins (not stackable headers) for connection to Arduino, but stackable headers can be used instead, just beware of upper shields conflicting with the RJ45 socket.
Features

• ENC26J60 based Ethernet
• Jumper select for 5v or 3v3 operation
• Includes all components needed.

Documents

Arduino EtherCard library Download
Build Instructions