Information sources

Since its release, there have been a great number of sources of information, tutorials, etc for the SNES Classic.

Reddit
Reddit is a site that acts as a forum, or rather a collection of forums. Each of these forums, or communities, is called a 'subreddit'.

Since the release of SNES Classic, a handful of different subreddits covering or related to it have been created, and some became important places for the community to communicate.

Discord
Discord is a site and application for messaging, divided into 'servers', that act more or less like forums. Since the released of the SNES Classic, some Discord servers related to the SNES Classic have been created, and it became an important tool for communication between the users.

YouTube
Patton Plays

KMFDManic

Madlittlepixel

Restalgia youtube channel

Github
TeamShinkansen's Hakchi2 CE

KMFDManic's Xtreme core set releases

Hakchi2 Github wiki

The Other Guys's classic consoles projects

Wikis
cuting room floor wiki

Emulation General wiki

Emulation General wiki

hakchi wiki, a more technical wiki about hakchi and its inner workings. Unfortunately, editing is not possible at the moment.

Hakchi2 wiki

ModMyClassic wiki

Nintendo wiki

Retropie wiki, due to similarities, this wiki may contain useful infomations for SNES Classic users.

Sunxi wiki ?

Foruns
ResetEra thread

Neogaf thread

RomHacking.net thread, where much of the work to fix games to work on Canoe (and other emulators like SNES9x and ZSNES in some cases, like with Daffy Duck - The Marvin Missions) was organized.

GBAtemp thread

GBX.ru thread (Russian)

HARDWARE.FR (French)

Others
Nintendo of America site

Hakchi site

classicmods.net -> only the MMC repo

ModMyClassic ?

modmyclassic wiki

snesclassicmods - contains various guides and tutorials

Robin64's Nintendo Classic Mini Resources

Twitter?

ROMGAME (French)