I found this by searching on Google. An account is not required, but you can register if you want.
Learn touch typing online using TypingClub's free typing courses. It includes 650 typing games, typing tests and videos.
www.typingclub.com
After the introduction video (skippable), it starts you off with something simple.
The 2 keys; f,j and where to place your fingers on the keyboard.
You can see the progress and scores, as well as jumping back to a previous "typing game".
