Quote from deucy28:
Are you addressing physical or virtual ? There are virtual trading rooms and forums. I offer the following because it worked well for us way back then, and the experience may provoke something greater.
Not the picture of what you have in mind, and certainly not quite the real time you are looking for, and perhaps not the excitement you are looking for. But out of this, can grow something more to your liking. Something YOU can customize. Eventually, it may grow into a physical trading room: next paragraph.
You start it. I did. It was years ago and primitive and did not have the features I referred to (above), but we all liked it for what it did for us. It was a proxy for being in the same room with each other. We started with 7 of us that actually had met each other in training with a much larger group. We traded together in All Tech day trading. (We were Harvey Houtkins SOES BANDITS !) We grew to around a dozen over a number of months, and grew more after I had to leave it. The sustainability of membership and growth was testimony that it worked for what it was and traders found good in it. We didn't have a web site or message board. We considered IM, but in the end, I volunteered to initiate it. It was Google documents. Eventually ( I was not close to this nor know the details), geography for some worked, and they got together in some sort of room to trade. But even there, many of them kept up with Google documents and the many using it. They liked it, I'm sure, because of many reasons.
Go to google and see its "documents'" feature if you are not familiar with it. There are probably other such things available and maybe better these days. We customized our own protocol for our own needs. We also had regularly scheduled post trading conference calls where good ideas came up for tweaking our use of the google document. (There are a variety of services for conference calls these days.) I filtered new membership and was bouncer and general housekeeper. There was a second person to stand in for me when I was not there occasionally for days. It did not have the spontaneity of personal presence, because it required typing and posting (we didn't mark down for spelling). We already knew, sort of, what each other's style was and what they were doing....So we could understand a post within the context of what we knew about that trader.) Posts were brief during trading hours. It was available 24 hours, but very active during trading hours. Traders found commonality with other traders in specialized areas, and started niche Documents, but kept up with the general Document where all traders had a hand in. Posts would generate an alert (email) that a post had been made. So in an awkward way, it was like IM, but the document was there for all traders to see right away or later, or to study later and call each other during or after trading session. We discussed having occasional get togethers, but it never materialized. (Some of few numbers may have done so.) Everyone had to contribute or be dismissed.
I am only describing a little of the dynamics and features and what went on. As I said, I'm sure there may be something else available now. It is a bit thinking out of the box, but you can create something like this and may find after comradery is established and geography works, you can get together in a common place for trading if resources are there. There certainly has been for a long time, virtual trading rooms on the web, but you can't customize them for perhaps what you would like to have. And I suspect fees involved.
Good Luck !