OK.
I started this topic not only because I'm seriously thinking about the necessity of a new playing website, but also because I wanted to know if there are anyone elses who can get serious about launching 81SU online game system.
And although I'm not yet too confident we're all pretty serious about it, I think I'd present some plan of how we can actually proceed it, since I see many people at least interested in this project.
My idea is, "why don't we split the work?". I think maybe it can be split into:
A: Graphical user interface of the game table. (plus its working algorithm for such as piece movement, timer action, etc.)
B: Graphical user interface of the waiting room. (how we show the name list and table list, etc.)
C: Network system (building communicating protocols, sever storage and security system for individual data, etc.)
D: Give opinions, requests, ideas, anything to the persons in charge of A to C.

One can do more than two at the same time if he'd like to, of course.
On the other hand, each of these could also be split into even smaller works.
I see there have already been many good suggestions so far.
But the most important thing, I believe, is that we get to have the new system RUNNING as soon as we can. So, I think we should give it a go as soon as the minimal required features are built.
We can think about adding other attractive features (such as "teaching mode" and "my page" some of you suggested) later, because once we get it running, hopefully more people get interested in improving the website, which means we get more people to help us.
(In order to improve it and add new features to it later, the program must be such that it's configurable, just as shogi4fun suggests)
What I'm worrying is if we need to expand the disk space, it would cost hirohiigo some additional payment. I think I should share part of the cost (as I'm the one who brought it up

), and hopefully, if we get more people playing at 81SU, hirohiigo could recover the cost by implementing advertising section or something.