VN Dev

Arimia - guide on making visual novels. It's full of resources!
OneLook Thesaurus' Reverse Dictionary - for when you can't remember the specific word you need but can describe it

These Heterogenous Tasks has some great articles on game/narrative design:

And here's some articles by Emily Short's Interactive Storytelling.

Crafts

Nunodoll - website with a bunch of free patterns and instructions for cloth dolls and stuffed animals
Embroidery Stitch Picture Dictionary - database of embroidery stiches with pictures and written instructions.

Compress or Die - what I use to convert my images to webp
CSS Grid Generator - drag and drop grid layout creator
Cursors4u - add a custom cursor to your site
Netfriend - cool things to add to your website (including the code I used for my gallery)
Solaria- lots of useful CSS/JS guides.
Betty's graphics - old web graphics, pixels, backgrounds etc
Jay's Rsrcs - pixels, frames, pngs etc
candyshoppe - pixels, frames, pngs etc
CSS box-shadow examples - 95 css box-shadow samples that you can copy with a click

Dynasty Scans - scanlated yuri manga and doujinshi
laingame.net - play the PSX Serial Experiments Lain game in your browser
readtsukihi.me[+18] - read Tsukihime, one of my favorite VNs ever
play.meltyblood.club - hop on Melty Blood!
lamento.nekoweb - Lamento: Beyond the Void fansite with lots of cool graphics
slybluehologhost - DMMD and sweet pool assets
Marginalia - cool little search engine design to find small, obscure websites.
Inspiral Web - draw with a spirograph in your browser
Asenheim Project[+18] - play old VNs for free in your browser
Tsundoku Diving - awesome website full of translations and reviews, mostly of obscure japanese media
Kowabana - site full of translated japanese horror stories, urban legends and creepypastas. I've spent many afternoons reading through this website over the years, there's always new stuff to find!