I'm looking for a simple chat script, possibly even a shoutbox script that could be used as chat script.
The intended application is a muti-user system that is broken up into small groups, with each group having its own private chat area. Groups won't need to (or be able to) communicate to each other; that is, the members of each group will communicate amongst themselves and have no visibility to the other groups.
A mySQL-based solution is preferred but not required (it could use flat files if necessary).
Any suggestions?