It all started with those Jokes, stories, and really out there inspirational messages people loved to copy/paste to message boards or through emails to all their contacts.
Things like send this to 20 of your friends in 5 minutes to cure some terminally ill kid or receive a billion dollars. Pretty soon the users of 4chan started calling then copypastas, a weird way of combining the words copy and paste.
And when various scary stories started circulating this way they were called creepypastas. It was the campfire stories of the internet and some have become pretty legendary.
These are my 10 favorites out of all the ones I've read. I'll try to keep it as *spoiler* free as possible.
10. Squidward's Suicide
The tale of one strange episode of Spongebob Squarepants that ends very badly for Squidward.
9. The Bad Dream
A very short, But very effective one.
The story of a guy investigating a very disturbing channel he remembers watching in 1999. Mr. Bear is definitely creepy.
7. Candle Cove
Another one about a weird low budget tv show with a very strange twist at the end.
6. Normal Porn For Normal People
Nothing really about porn in the whole story. But it is very strange and extremely brutal, So I like it.
5. Jeff/Jane the killer
The picture of Jeff the killer scared way more people than the actual story. And a lot of girls seem to love Jeff but hate Jane, Go figure.
4. The Keyhole
I love any story about ghost and hotel rooms. This one got to me the more I thought about it. Also known as white and red.
3. The Slender man
The most famous creepypasta of all.
2. The Russian sleep experiment
Very messed up stuff.
1. Abandoned by Disney
The very first creepypasta I read and still my all-time favorite.
Bonus: Ben drowned and all other game related creepypastas.
I'm a gamer so I love the ones about creepy games. This one about a hacked copy of Legend of Zelda: Majora's mask is the most famous.