I started this thread originally in the Yesterweb forums on Tuesday May 10, 2:05pm 2022 :p Since it's now going defunct, here are those links that have been shared! ^^
(https://web.archive.org/web/20100211022020im_/http://neskaya.net/avatars_icons/Barunson/icon.gif)
100x100 avatars by neskaya.net (https://web.archive.org/web/20100210001255/http://neskaya.net/avatars.php)
(https://web.archive.org/web/20091219055304im_/http://swordian.com/_avatars/chobits2.gif)
anime avatars by swordian.com (https://web.archive.org/web/20100429092650/http://swordian.com/avatars/)
(https://archive.cinni.net/test/bouncy-bubbles-avatar-80x80-anime-ak22.gif)
some avatars that i've archived (https://archive.cinni.net/avatar.php)
(https://nightmarefantasmic.neocities.org/avatars/bakuraavacontest.gif)
templates & 2004 avatars by nightmarefantasmic! (https://nightmarefantasmic.neocities.org/)
please feel free to share more links below!!
~*saved*~
WIP:
https://mothcore.neocities.org/pages/foryou/graphics.html
http://w.avatarhell.com/index.html
https://www.glitter-graphics.com/
http://avatarhell.com/
http://iconhell.com/
http://wrasse.pw/~joel/icons/
https://www.tumblr.com/search/arknights%20icons
https://icons.dreamwidth.org/
https://swiftyshq.neocities.org/random/free.html
https://twitter.com/geocitiesgifbot
https://twitter.com/search?q=100x100+%28from%3Ageocitiesgifbot%29
https://web.archive.org/web/20091026194021/http://www.geocities.com/fallenanjel7/Avatars
https://oldinterneticons.tumblr.com/
https://malice-in-wonderland.neocities.org/collection
https://animatedglittergraphics-n-more.tumblr.com/archive