Teaching kids to type

I volunteer in my first grader's computer lab every week. Turns out that kids are taught science and math on computers starting from Kindergarten. I observed that kids that know the keyboard well literally fly through the labs, while the rest are searching for keys. One of my friends told me about this online typing tutor. It is hosted on BBC's site - http://www.bbc.co.uk/schools/typing/

My six year old whose attention span is not great is able to work on this for half an hour at a time. It has helped his typing skills as well. I notice that he now automtaically puts two hands on the keyboard. I am sure the speed with follow.