Typeracer

You can learn summat from this'un you can! You can learn that typing fast is really hard. Typeracer is still in beta but in it's full glory it will definitely turn touch-typing heads. Basic concept - when the clock starts you have to type the given phrase in the shortest time possible in order to beat real time opponents, with the progress played out graphically like a car race.

You can go deeper however, and login, create an account, become one of them. Then you can submit phrases of your own construction, practise racing on your own and build a chart of your type-speed progress over time, then post it to the blog. Typing out speeches from films like Snatch and Reservoir Dogs is great, and racing games are great too. Great game.