IRC is the default form of instant messaging used by the combine. It allows large groups of people to communicate in either public rooms, private rooms, or through private messages. It is accessible from a variety of programs. The simplest, but least versatile, option is to use the Live Chat button in the top right corner of the SWCombine page.

There are an array of IRC networks for a variety of uses. We however are only concerned with the SWCombine IRC network. Everyone has a "nick", this is just their username on the IRC network. Nicks are restricted to just letters, numbers, and a select few symbols. Spaces are not allowed. A private message (PM) is a way of communicating privately (unless either of you choose to share the logs) with any other user logged on to the IRC server at that time. There are a variety of IRC rooms, unique to each network. All rooms names begin with "#" and follow the same restrictions as nicks. Each registered IRC room has an access list. Owner, Operator, and Half-op can police the room. Access and voice levels are required if the room is private or moderated respectively. Banning a user means the server will deny that user access to the room(s) they are banned in unless an operator removes it later.
There are various benefits to switching to an IRC client. The main ones are the ability to log conversations and save them for your records and the auto perform list which allows you to create a list of commands to perform automatically upon sign in in order to save time, especially if you join numerous rooms.