Psychoanalysis over the Internet is discussed as a means of reflecting on the way we think about theory of technique generally, and on what we mean by “communication” between patient and analyst. The way we think about online therapy has direct implications for the way we practice “offline” therapy. This problem is discussed from the point of view of the history of the theory of psychoanalytic technique, with reference to the classic 1953 paper by Kurt Eissler (K. R. Eissler, 1953, The effect of the structure of the ego on psychoanalytic technique, Journal of the American Psychoanalytic Association, Vol. 1, pp. 104–143) on “parameters,” and also with reference to the redefinition of psychoanalysis itself in terms of the analysis of the transference by the late Merton Gill (e.g., M. M. Gill, 1984, Psychoanalysis and psychotherapy: A revision, International Review of Psychoanalysis, Vol. 11, pp. 161–179). Online therapy is simply a different therapy, in the same way as two therapies, both offline (or both online), may be different from each other. The fil rouge that runs through this paper is a reflection on the very identity of psychoanalysis.