IRC (Internet Relay Chat) is a text-based chat suite that allows poeple from all over the world to communicate with one another. Best of all, it's completely free. For just common chatting, IRC is pretty simple to use, much like using MSN messenger.
IRC is a good way to chat with fellow AnimeNfo users. Many anonymous people come to IRC and ask about things manga/anime related, or just to chat with other users. Talking about what's on our radio station is a common topic as of late. Don't be shy when you join the channel. You'll find some of the common AnimeNfo users on IRC as well.
There are several clients that you can use to connect with. There are web clients that require the use of Adobe Flash or Java, as well as add-ons for popular browsers like Mozilla Firefox. More configurable clients are available, depending on your operating system (Windows, Mac, or Linux/BSD). They all, in the end, work the same way and we'll discuss in the connection guide the most popular ones.