Hi
I have an Arduino Uno and recently purchased a Sparkfun RedBoard. I want to acquire a Ethernet Shield, but would like to know if the Shield would be compatible with the Sparkfun. The pin layout seems the same on both the Uno and the Sparkfun, but I would just like to know if it will work on both.
Pieter
Hi yes I have the exact same question 
The RedBoard works fine for me with the Arduino Ethernet Shield. When I bought my Arduino Ethernet Shield the picture was the arduino.cc board but the product delivered by Amazon was the arduino.org board. It still works but I wish that arduino.cc would get their silkscreen into commerce again.