First of all, I ask your understanding because this original post was written in Korean.
In this tutorial, the author will show you how to save sensor data remotely with ThingSpeak, Arduino and WizFi250.
The author connected a temperature-sensor to the Arduino and sent the sensor-value to ThingSpeak server using open API of ThingSpeak and Arduino WiFi Shield(WizFi250).
Then, you can see the real-time-graph in his channel of ThingSpeak as below.
Source : http://kocoafab.cc/view/tutorials/306(Korean)