I think relying on the internet will be a major factor in the Watchtower's undoing. It's a damned if they do, damned if they don't situation. Long before I searched for TTATT online I would Google information about Mormons whenever they came to my gate. Why? That is just the custom of the age in which we live. You see something you are unfamilar with and start looking for more information, and the experiences of others.
Want to try a new restaurant? Google it first!
Want to buy a new car? Google it first!
Want to try a new diet? Google it first!
Strangers show up at your door promoting their movement or product? Google it first!
The current norm is to 'shop around' for the most information possible (visit many sites and compare data).
If I knew nothing about the Witnesses, and one of them told me they had an Official Website I would visit it, and then begin to wonder:
Do they have an official Twitter? Youtube? Facebook? What are others saying about them on these sites? Do they have forums?
I'd fire up the trusty old Google and compare the hell out of results.
@joe134cd - This thread might interest you