Internet psychotherapy may refer to occasional email or texting sessions between you and your psychotherapist, usually only if one of you is out of town or cannot come to the office. Attempting to do therapy by email or texting is a poor substitute for meeting in person; you may consider it if you’re out of town and are having a crisis, but it is definitely not a replacement for traditional face to face therapy.
You may also hear about computer driven psychotherapy. This is not a new idea ever since computers started to use transistors, programmers have been trying to write computer programs that would replace a trained psychotherapist. These programs are usually a joke. Do not waste your time.