Initially planned as a means of communication for staff conferences, GameReplays.org is inviting you to join the IRC channel #[email protected] as well. For those of you, who are not familiar with IRC, here is a short explanation:
Internet Relay Chat (IRC) is a form of real-time Internet text messaging (chat) or synchronous conferencing. It is mainly designed for group communication in discussion forums, called channels, but also allows one-to-one communication via private message.Source: Wikipedia
If you are still not sure what IRC is, watch this video. It should make it all "crystal clear":
In order to join the channel you will need an IRC client (program or add-on). The most popular IRC client for Windows-based operating systems is mIRC, but you can also use instant messengers like Miranda IM, which support IRC as well. Or just use ChatZilla, an add-on for Mozilla Firefox.