I've always been chronically online, I want to start writing down the random shit I remember so I can come back and detail it. More to come as my brain remembers.

Koei forums

IGN forums

YTMND

AIM

Yahoo - messenger and answers

Neopets

Newgrounds

Habbo hotel

Flash

Salad Fingers

Charlie the Unicorn

Early meme days

Gamefaqs

Digg

Early Reddit

StumbleUpon

Myspace

End of Ze World

Other early Youtube

Steve Irwin

Dial up sounds

Cd players

Memory cards

Phonebooks and encyclopedias

Early Mp3 players

Specific flash games, tower defenses, line rider

flame shirts on picture day

Limewire

old phones

last.fm

weebl

Homestar Runner

You've got mail

Photobucket

epic fails

Cracked

lolcats

Ultimate showdown

Chocolate rain

Numa numa

Chuck Norris

lolrandom core

Leeroy Jenkins

Over 9000

Shoop da whoop

FPS Doug

Epic, pwned, leetspeak

Freddie fish disc

Red vs blue

Pizza hut buffets and the red cups

Yahoo ruins everything it touches, including Geocities and Tumblr

Angelfire

Happy Tree Friends

CS: Source and my favorite map, CS Office

School memories - so many, will need its own post

Ebaums

Even more