Basics
HTML Cheatsheet | A SUPER USEFUL SITE chock full of tons of tips and useful cheats and such. A little hard to understand without basic HTML knowledge but this is my favorite resource.
web.dev | Courses to learn HTML and CSS basics!!!!
W3schools HTML and CSS tutorials | W3schools is awesome and has a lot of the basics fully covered for beginners :P
W3schools HTML and CSS reference masterlists | W3schools also has references for all elements in alphabetical order, references on web-safe fonts, and more
Sadgrl.online Neocities Basics | Basic info on neocities by sadgrl!
Sadgrl.online Webmastery Resource Page | A page just like this one with tons of resources on it!!!! This one is super useful
WebGuide on Neocities "A beginners guide to HTML and CSS" | Another good neocities basics page
CSS-Tricks Flexbox layout guide | Really simple and easy tutorial if you are doing a flexbox website layout
Decoration and Fun
cursors-4u.com | Free cursors for your webpage! To add them to your page you can use the link to the .cur or .ani file of the cursor and put it in your * of the CSS as "cursor: url(INSERT FILE URL HERE);"
Wiki on neocities banners & making them
Guide to colors in HTML
BitFontMaker2 | Web based program to make your own bit fonts!!!
Dafont.com | LOADS AND LOADS OF FREE TO DOWNLOAD FONTS!!!! All sorted by category & searchable
Gifypet | Get a little pet for your page :P
Cbox | Chatbox host for your webpage :P
Blinkies cafe | Blinkie maker!!!!!
FC2 counter | Visitor counter & stats for ur webpage :3
3D text 3 gif | 3D text maker for all of your 3D text needs!!!