I am realy satisfied with your services and also the answers I get so far here. That is why I have one more question:
I have to register now for the TOEFL exam. Could I do it via your site?
How to register for TOEFL iBT
In order to register for the TOEFL test you better visit the official TOEFL site which is toefl dot org. When on the site find and follow the link 'register for the test'. It will guide you through the registration process. Of course, you may find a local center that may register you but in most cases they will charge you for this service.
Thank you for the good words!