Nice article. I began using IRC back in the early 1990's, right as dialup internet began to challenge standalone dialup bulletin boards. IRC was a lot of fun back then, being relegated mostly to academia and certain cultural undergrounds. When the web, and instant messengers (AOL, Yahoo, Microsoft) hit the scene later in the 90's I think most people figured IRC would fade away just like the old BBS scene did.
But, IRC has endured.
It's interesting to note that IRC is *widely* used in today's military theaters of operation, having been re-discovered as a simple and robust theater communications protocol during the Iraq war. Here's an example study called "The Impact of Synchronous Text-Based Chat on Military Command and Control":
http://www.dodccrp.org/events/11th_ICCRTS/html/papers/025.pdfIt specifically talks about the impact of IRC. Interesting stuff...