Astronomy

3D Interactive Asteroid Space Visualization - choose a date, see where the asteroids are in the inner solar system

Solar System Scope - online, interactive, 3D model of the solar system and night sky. Includes dwarf planets!

The Planets Today - see where the planets are in the solar system at any date

Art

Apophysis AV - fractal flame generator

AdorkaStock - pose references

Coolors - color palette generator

FireAlpaca - free digital painting software

GNU Image Manipulation Program (GIMP) - free, open-source image editor/art software

Conlanging & Linguistics

Gleb - random phonology generator known for generating absolutely ridiculous phonologies

Index Diachronica - search sound changes in lots of languages

IPA keyboard - type IPA symbols!

World Atlas of Language Structures (WALS) - a database of language properties

Science

Deep Time Maps - maps of ancient earth

earth :: a global map of wind, weather, and ocean conditions - exactly what it sounds like

SFFH Magazines

Last updated 1 August 2023 to add IZ Digital

Apex Magazine - a magazine of fantastical fiction, interviews, & essays.

Beneath Ceaseless Skies - a literary fantasy magazine. One story per issue is available in podcast form.

Clarkesworld - a monthly SF/F magazine. All stories are available in podcast form.

Constelación Magazine - a bilingual English/Spanish speculative fiction magazine prioritizing authors from Latin America & the Caribbean. No longer publishing.

Daily Science Fiction - a website that publishes short science fiction every weekday. You can subscribe by email to have each story emailed to you. No longer publishing.

The Dark Magazine - a magazine of horror and dark fantasy. Certain stories are available in podcast form.

The Deadlands - a monthly speculative fiction magazine exploring Death and its relation to the living.

Escape Pod - a weekly podcast of science fiction.

Fantasy Magazine - a magazine focusing entirely on fantasy.

Fireside Magazine - a magazine of shorter stories (under 3000 words) of any genre. No longer publishing.

IZ Digital - a magazine publishing fiction from all over the world.

Kaleidotrope - an quarterly SFF zine.

khōréō magazine - a quarterly genre magazine that primarily focuses on themes of migration.

Lightspeed Magazine - a magazine of SF/F fiction & nonfiction. Four stories per issue are also available in podcast form.

Nightmare Magazine - a horror and dark fantasy magazine of short stories, flash fiction, poetry, editorials, and reviews. Two stories per issue are available in podcast form.

Omenana Magazine - a tri-monthly magazine of speculative fiction by African & African diaspora authors.

Podcastle - a weekly podcast of fantasy fiction.

Reactor (formerly Tor.com) - publishes a few pieces of original fiction per month.

Space Fantasy Magazine - a magazine of space fantasy flash fiction.

Strange Horizons - a weekly magazine of SF/F/H fiction, poetry, reviews, essays, and interviews. Most (all?) of the fiction & poetry is available in podcast form.

Translunar Travelers Lounge - a magazine of fun speculative fiction.

Uncanny Magazine - a bimonthly magazine of SF/F fiction & poetry, interviews, essays, and editorials. Certain stories are available in podcast form.

Other

Native-Land.ca - territories, languages, and treaties of indigenous peoples around the world

Retail Archaeology - dead malls, retail history, and retro games & toys

RSS feeds, feed readers, etc. (smallweb.dreamwidth.org) - a guide on RSS feed readers, how to find RSS feeds, and what can be added to a reader. Comments have plenty of useful information.

Webcomics

Blanco by CB Webb - on hiatus

Bookwyrms by Lorena Garcia - currently updating

Let's Speak English by Mary Cagle - Complete!

leveL by Nate Swineheart - on hiatus?

Now Recharging by "Maiji" Mary Huang - Complete!

The Pale by Jay and Sanders Fabares - on hiatus

Sleepless Domain by Mary Cagle - currently updating

Tales from Alderwood by medli20 - currently updating

Thistil Mistil Kistil by Sarah Schanze - on hiatus

Wilde Life by Pascalle Lepas - currently updating

Web Development

How to Build a Personal Website (Kiriska) - A guide on how to build a website, going over domain registration and hosts

Notepad++ - A code editor. It's what I use to code this website.

W3Schools - learn to code

Writing & Worldbuilding

Artifexian - videos about worldbuilding

Atomic Rockets - hard science fiction reference site

Behind the Name - database of first names

City Generator - online city generator

List of timed artistic challenges - not just writing, but art, comics, etc.

Seventh Sanctum - random generators