This site is a pretty complete package. Several thousand monster reviews (including every single Pokémon), >yearly Halloween countdowns and creepypasta writing contests, art galleries, Flash animations, and an on-going webcomic.
A movie streaming server dedicated to horror. They are known to carry obscure stuff.
A fairly popular horror news site. Covers mostly mainstream stuff.
Lists locations for harvest & Halloween events, such as haunted houses, pumpkin picking, Oktoberfest, hay rides, corns mazes, etc. (United States only)
A blog mostly about nostalgia. He is a pretty big fan of horror, and does an awesome Halloween countdown every year.
A cute little Halloween blog. Crafts, costumes, recipes, and so on.
A blog which documents real world scientists who pushed the limits of common sense, safety or morality a little too much.
A blogger who attempts to illustrate every single monster described in the writing of H.P. Lovecraft.
Well, sometimes. It's a movie review blog that's exclusively horror in October. Their archives are always available though.
A collaborative writing project about a quasi-government organization that contains anamolous entities and phenomena. Users post short horror stories formatted like classified documents. The whole thing is beyond creative.
Well... it's pretty much all in the name.
Attempts to list every species of extraterrestrial ever imagined. Uh, yeah, good luck.
A sister site to the previous one that attempts to list every other monster. Surprisingly, this site is smaller.
Bascially last two wikis combined but not associated with the project. Even smaller and somewhat better organized.
Dedicated to Toho films, mainly.
A collection of short horror stories with wildly varying quality.
A subpage of TVTropes that lists moments of horror across all media, even non-horror stuff.
Discussions of every medium and every subgenre of horror.
Same thing as the last one, but a little lighter on the users.
Yeah, 4chan. The site's culture is an acquired taste, but /x/ is comparatively tame. You may know it as the origin place of Ben Drowned, or the previously mentioned SCP foundation.
If you like Pokémon, also consider checking out /vp/. Fair warning though, it's mostly furries.
A forum for people who dream as a hobby. I was pretty surprised to find out such a thing existed.
Mini documentaries about the history of horror. Pretty good production value.
A horror podcast. Cool, sure, whatever. The best part is the retro Halloween commercials they post, though.
A teensy tiny channel with only a couple painting timelapse videos from years ago. Still pretty awesome!
An animator with a distinctly dark and grungy visual style. Not necessarily horror, I guess.
Mainly analyzes other YouTube horror series and ARGs.
An animated series about... a cat... and a ghost... yeah.
A daily podcast about conspiracy theories, the occult and true crime. He's got a great sense of humour.
A classic YouTube series that established much of the Slender Man 'canon.' Arguably still a fresh meta spin on found-footage horror.
In 2008, a group of friends made a character named Uncle Samsonite, a pig-like humanoid that abducts children. One of the friends would go on to use the character for a university animation project, which gained traction on YouTube. The success would prompt him to make a full series out of it.
This guy makes me wonder why claymation isn't used for horror more often. Also, appearently he snagged the profile URL "death." Nice.
Speaking of claymation, here's a tiny channel that makes really soulful homages to classic monster films.
An artist with a pretty unique visual style, superimposing monsters over real photos.
You may know him for his character Siren Head. Also, he's Canadian! Cool.
An artist who's style is defined by the visual irony of grotesque subject matter with cute presentation.
Strange fusions of life and technology in eye-burning color palettes, like H.R. Giger underneath a blacklight.
An artist working for Capcom. Mostly posts mechas, but sometimes posts creatures. Worked on NieR: Automata, Metal Gear: Revengance, and Scalebound.
Depressingly realistic horror art. Some reoccuring themes include childhood trauma, and characters oblivious to lurking threats.
All of these sites have an immense amount of horror art. Sometimes good, even.
If you were alive & had an internet connection between the years of 2001-2009, chances are you have already heard of Homestar Runner.
Regardless, their Halloween episodes hold up really well.
A website where people upload various monsters, including info and galleries, then rate them.
Or atleast it was. It shut down in December 2019. R.I.P.