These are links to websites that I find useful. 

  1. Authors’ websites

These all write in the genres I’m interested in. I haven’t tried to differentiate between fantasy and science fiction authors. Nor is it a complete list of authors I’ve read.

Terry Brooks
Steven Brust
Philip Caveney
Neil Gaiman
Terry Goodkind
Robin Hobb
George R R Martin
Juliet E. McKenna – Fantasy Author
Metaphysical fantasy (A J Dalton)
Thalia Newland
Philip Pullman
Philip Reeve
Swan Tower (Marie Brennan)
K M Weilland
 

2. Writing and Research websites

(I haven’t listed the obvious ones like Wikipedia and Pinterest since they are so ubiquitous.)

About Writing – The Personal Blog of Pace J Miller
Behind the name
Better Novel Project
Castle Frankenstein
Chaotic Shiny
Character name generator
Cockney Rhyming Slang
Daily Writing Tips
Damn Interesting
descriptionari
Dieselpunks
Diabolical Plots
Dictionary of Interjections
Dictionary of Obscure Sorrows
Dirty 30s
Discworld Wiki
Disqus
Donjon
Dragon writing prompts
Early Days of a Better nation (Ken MacLeod)
English idioms and idiomatic expressions
Fake Names
Fanlore
Fantasy Name Generator
Fantasy Name Generator 2
Fiction University
Free Images
Futurism
Geek Native
Glossary of terms about vampirism
Grammar Tips
Grand list of fantasy cliches
Greg Costikyan
Helping Writers Become Authors
Hemingway
Imagine forest
Inky Fool
Jerry Jenkins
Les Ailles Immortelles
Memory Alpha
Mythopedia
Mythic Scribes
Name Generator
One stop for writers
Periodic Table of Story Telling
Playing at the World
Plot Generator
RanGen
Roll for Fantasy
Romance University
Random plot generator
Random word generator
Reddit Fantasy
Reddit Steampunk
Save the Cat
Science Fiction and Fantasy Writers of America
Seventh Sanctum
Shoreline of Infinity
SparkNotes
Standout Books
Steamed! Writing steampunk fiction
Steampunk Wiki
Terrible Minds (Chuck Wendig)
The Encyclopedia of Science Fiction
The Grinder
The Hyborean Age
The Online Scots Dictionary
the Online slang Dictionary
The Phronistery
The Story Starter
the Write Practice
The Writer Owl
The Written Sound
Tropedia
TV Tropes
Urban Dictionary
Victorian Steampunk Glossary
Wordnik
Write it Sideways
Writers and Artists
Writers Helping Writers
Writers Digest
Writers plot generator
Writing.com
Writing while the rice boils
Written Sound