>>> The Greek verb here rendered "preach" (ke`ry'so) means, basically, "make proclamation as a herald." The idea is not delivering sermons to a closed group of disciples but, rather, making open, public declaration.
Interesting, Bleep.
I still see no reason why "proclaiming" or "preaching" on the Internet wouldn't be a fulfillment of this rendering.
In the course of doing my job, in the past I've been in the neighborhood of a bible college. Evidently, as part of a (male) student's training, occasionally there'd be a couple of them standing at one of the busiest street intersections in this part of the city.
They'd be "preaching" to no one in particular except the passing traffic. I never once saw them actually engaged in dialog with anyone. Speaking (yelling, really) loud enough so that they could be heard above the din of the passing cars and trucks, they'd usually be blood red in the face. They looked quite ridiculous but they did remind me of the odd behaviors of the ancient Hebrew prophets I used to read about.
Maybe you can explain the difference between what these students are doing as opposed to posting to a passive, non-interactive Internet audience. I've never studied biblical Greek but it seems to me both activities are "preaching."