I don't write here since a long time, I'm learning about other projects but this project still alive.
There a lot of information about the installations, and services to install on the cubieboard.
Also there is a book, with a very professional information to install linux on the cubieboard and how to install services.
And with a quite and simple but very useful information about the GPIO's and how to use it.
This book is very recommendable and you'll take afford of his reading.
I hope to find another books like this were can explain other features like I2C, serial communication