Courses are given in live messaging, that is by messages and scripting in real time. The teachers have followed a course of quick dactylography, that enables them to answer to the student’s questions and objections through the keyboard. Brief questions can be asked by writing during the courses’ periods and get immediate answers if the teacher finds it useful. This method has the advantage that answers as well as the lectures themselves are obtained in a written from, and can be read at your leisure. It combines the advantages of a lecture ex cathedra, and of personalized courses.