This is a neat web app and I liked it. However, it is asking me to sign up after finishing the initial test. Why not give me few more tasks to do, let me know what areas should I improve and then ask for if I am interested to register/sign up. It will be great if the exercise offers single sentence with one or two grammatical error/s instead of a whole paragraph. But anyway I believe it is a great start and heading towards right direction. Thank you guys for such an awesome Web App. I will register and go through it more and will provide your periodic feedback.