The official mBot website and an introduction video on its functionality
This is the website describing the mCore board, used to control the mBot. It is based on the Arduino Uno, and it combines multiple functions such as a buzzer and a light sensor into one board.
The Makeblock YouTube channel has some pretty interesting projects of its own if you would like to try building some of those.
I will be making a page of this project on the Instructables site, but here are some of their projects that already exist.
Some fun videos featuring the mBot