Smogon University - Pokemon Showdown! has been updated with new HD sprites. Please have a look->

Sticky - Sun/Moon Sprite Project

An Introduction to Spriting - Smogon University

How to sign up for Pokemon Showdown - Quora

Black/White - Smogon University

Resource - SS Monotype Sample Teams [Crown Tundra]

New SV info dropped and revealed 3 new - Smogon University

Smogon University - The Create-a-Pokemon community on Smogon doesn't just design Pokemon; they're also fully playable in the CAP metagame on Pokemon Showdown! Learn more about CAP here: .com/forums/forums/create-a-pokemon-metagame.477

Smogon University - Pokemon Showdown! has been updated with new HD sprites. Please have a look->

Smogon University · GitHub

Room Introductions and Descriptions - Smogon University

Sticky - Smogon Sprite Project

Index of /sprites

Pokémon Showdown (@PokemonShowdown) / X

OUTDATED] The Beginner's Guide to Pokémon Showdown

Sticky - X/Y Sprite Project