Before GAF, Before forums, before the mainstream internet, before IRC, there was YOUR LOCAL BBS SCENE
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Discussion forums, online text games (legend of the red dragon, tradewars), FILES of all kind, from the sharewares to random '80 porn pics in 10k gif format. Multinode chats, meeting up with girls and some very strange people. It was a true super hardcore underground network. Members were approved by the admins; you always have referals, a reputation was more important than anything. You also had inter-bbs forums where you could discuss with people from around the world (and messages could take a week to get to them!) Thats how I asked John Romero how he felt about Duke 3D! and he actually wrote back
And there was also the whole dark side of bbs; super hardcore warez scene groups, traders, real deal hackers/carders/phone phreaks; anarchists posting weekly virtual flyers about their meetings; art groups (people who made ascii/ansi art for warez groups, bbs, graphitis on the street, punks, and so on
If you grew up in the mid '90 as a teenager, bbses were THE SHIT. Thats how I first got internet access, by using a door system (kinda like an online program) to reach IRC. It felt like having an arm into the blender that was the underground scene at the time.
You can watch online for free something 'THE BBS DOCUMENTARY' that talks a lot about this semi secret culture; its a bit long (around 3 hours), but its a solid primer to what it was.
Is it now completely forgotten, most people involved with them moved out to irc in the late '90; and that was the end of it. I held on to my local boards until 1999 and most of them closed around then. The internet had won.