I recently installed and tried out “Cayenne“, which is an Internet of Things platform for the Raspberry Pi. You hook sensors up to your Pi, create the relevant boxes on Cayenne and then you can see readings over the Internet. Not only that, you can also remote-desktop to your Pi and control the GPIO pins via their excellent web or mobile app. Overall, it was a very positive experience and I was able to use all the functions available with little to no bother. Thoroughly recommended if you want to do this kind of thing with a very nice interface. Take a look.

Gus, over at Pi My Life Up, has written an extensive tutorial on installing and using it and gives his reaction to the service. I highly recommend reading through it.