1st Generation

Met in the real world. Computers were bulky.
No internet.

Timesharing ?

2nd Generation

Usenet
Mailing Lists

3rd Generation (Early Gen X)

BB
Forums
Torrents
Limewire

4th Generation (Late Gen X)

Friend Feed
Google – Orkut / Buzz / Talk
Livejournal
Delicious
StumbleUpon
Tribes
Everything2
Last.fm
Flickr

5th Generation (Early Millenial)

Youtube
Digg
Reddit
Facebook
4chan
Meetup

6th Generation (Late Millenial / Gen Z)

Twitch
Discord
Snap
WhatsApp

7th Generation (Gen Z)

VRChat
TikTok