Things I like
The following items are seriously amazing:
Books and articles
An article about a guy who opens a hotel and secretly watches people who stay in it.
An article about the use of psychedelics for therapy.
A difficult to describe and highly amusing article about reality.
A webcomic about strange people (and non-people, like books and snakes) in a park. Simply the website iteself is worth seeing.
Achewood (by Chris Onstad)
Forming (by Jesse Moynihan)
Ant Colony (by Michael DeForge)
Other interesting things
I periodically write about fascinating things on my blog.
This is an excellent puzzle illustrating Gödel's incompleteness theorems. It comes from Smullyan's wonderful book Gödel's Incompleteness Theorems