Graphics
horror gif necronomicon - massive catalog of horror graphics and such. hell yeah.
gif cities - ol' reliable. massive catalog of gifs from geocities.
blinkies.cafe - get yourself some blinkies - or make your own!
glitter-graphics - shit tons of graphics.
gifcity.carrd - a carrd full of graphics.
99gif shop - more web graphics
texture town - a collection of textures, mostly tiled.
sadgrl's tile backgrounds - a collection of tiled backgrounds.
nuko channel - a comprehensive archive of funny cat pixels
coco's pixel safari - large collection of graphics - favicons, buttons, dividers, stamps, blinkies, etc
cursors 4 u - lots of cursors (with html support!)
totally free cursors - some more cursors (also with html support!)
88 x 31 button maker - make your own buttons!
bonnibel's graphic collection - large, easy to navigate graphic collection
xyz.crd.co - lots and lots of graphics from large to small.
hekate2's website tools - archival of old tile backgrounds & background tile generator.
ichigo directory - massive graphic directory.
i'll prob add more later...

Coding & Website Stuff
resources for html, css, etc.

sadgrl's resources - directory for sadgrl's many coding resources.
w3schools - very useful on learning the basics of html / css
petrapixel's layout generator - a customizeable layout maker by petrapixel
sadgrl's layout generator - a customizeable layout maker by sadgrl.online
eggramen's templates - some stylesheet templates by eggramen.
css grid generator - make your very own css grid.
css gradient creator - make a css gradient and have this spit out the code for it.
i'll probably add more later...

Art & Editing
stuff for art assets and ways to easily edit your images.

online image editor - browser-based image editor.
remove.bg - remove the background of a png of your choosing - all online!
salvaged.nu - 2000's salvaged photoshop assets.
transparent textures - ...transparent textures!
x6ud.github - references of animals from many different angles.
designdoll - make your own poses!
morpho fat and skin folds - learn how to draw fat bodies and such
adorkastock - lots and lots of pose references.
cobalt - download audio/video from certain popular websites.
ezgif - turn videos into gifs as well as many other format converstions.
dither it - dither your images.
photopea - browser-based image editor
i'll probably add more later...

Toybox
fun stuff for your amusement!

web archive - you can never go wrong with the web archive / wayback machine!!
lomando.com (eng) - a browser-based horror/puzzle game. cw for flashing lights on some pages and loud sounds.
web design museum - a peek into web design throughout the years!
mobile phone museum - a catalog of old phone models.
y2kaestheticinstitute - delicious y2k-flavored design.
terrible realestate photos - what is says on the tin.
ita bag central - get started on your first ita bag!
i'll probably add more later...