There's no doubt that cyberspace can be used for therapeutic purposes. In fact, some clinicians are doing email and chat psychotherapy, which are fascinating analogues to in-person therapy. As a clinical psychologist, I was intrigued by these kinds of interventions when they first appeared online and have had many interesting discussions with professionals who do this type of work. My colleague Michael Fenichel and I founded one of the first online case study groups to explore the pros and cons of psychotherapy in cyberspace.
The basic philosophy of eQuest is that developing a healthy online lifestyle can improve one's in-person lifestyle (and vice versa). Although a consultant might assist a person in this objective, such professional guidance isn't always necessary. On their own, people can discover and benefit from the therapeutic features of cyberspace.
Now this conclusion might seem obvious, but it's important to examine it in light of an important debate in the history of clinical psychology - a debate between what I'll call the Stuck Theories and the Growth Theories. The Stuck Theories (like traditional psychoanalysis) maintain that people are so locked into their psychological and social problems that they cannot change on their own. Some outside intervention, as from a mental health professional, is required. On the other hand, the Growth Theories (as in many humanstic approaches) state that people have an intrinic potential to change for the better, that this potential might be blocked by outside forces, but the internal push to change will thrive as soon as the right opportunities present themselves.
I'm leaning towards the rosy and optimistic Growth Theories when I say this, but I think cyberspace can provide those opportunities. The Internet is all about empowering the individual. When developing an online lifestyle, people have so many possibilties to explore - information, relationships, media for self-expression - that they are bound to find the right ones to open that path to personal growth.