My very first was my dad showing me his ICQ convos and letting me say hi to one of his friends, the client going OH-OH every now and then. Late 90's.

Does anyone remember Freenet? It was community dialup where as long as you had a modem you could dial in and use the Internet without your telecom being involved. Anyway I found my way to telnet talkers, which predated web browsers, and you had to telnet into a specific IP address to join a text based chat room. This was the earlier 1990s.

Probably 1998, Apple donated a bunch of iMacs to my elementary school and that was the first time I had free access to the Internet before and after school. I remember learning about search engines in class (pre-Google - Altavista, Dogpile, and AskJeeves were the big ones), and I remember learning html and making a website as a group project in 5th grade. I also remember the stuff I shouldn't have been looking at, mainly FunnyJunk, lol. I got dial up at home in 1999 or so, and got into role playing forums and Gaia Online.

Playing flash games on cartoon network and nickelodeon. Not long after, my uncle exposed me to newgrounds. Good times.

I don't remember, neither the first time I used a computer, I was born in the 2000's.