Had a modem and connected to a lot of bulletin boards. I felt very much a like "WarGames" hero, calling phone numbers and all :)
I still remember the day when I used ppp to connect to the actual Internet for the first time. After a lot of trial and error, I finally pinged www.linux.org, and it resolved the hostname and returned the ping. I was silent first, and all I could say then was "whoa".
Oh fun times. :)