chat room

Internet chat area, virtual "room" on the Internet where people hold real-time conversations

A chat room or chatroom is a term used primarily by mass media to describe any form of synchronous conferencing, occasionally even asynchronous conferencing. The term can thus mean any technology ranging from real-time online chat over instant messaging and online forums to fully immersive graphical social environments.
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Noun
1. a site on the internet where a number of users can communicate in real time (typically one dedicated to a particular topic)
(synonym) chatroom
(hypernym) web site, internet site, site

channel

where respondents in separate locations all participate in a virtual group discussion by using their PCs. The discussion has a moderator and comments are communicated in writing on members’ screens.