A free website (with a paid membership option) where people are able to upload their drawings, paintings, digital art, photos, etc. with virtually no restriction.
It is true that the site has the unfortunate downfall of having superfluous quantities of bad and/or mentally disturbing/sexually deviant artwork, but for the most part it is a very useful site for those who know how to use the search box correctly to find what they want.
It is also home to many creative minds and talented artists, and Deviant Art is not without humor either. Artists like myself mainly draw humorous "cartoons" or comic strips, among other things see Demotivational Posters
I compose and submit humorous artwork and posters on my main deviant art account.
On my other account I submit erotic and romantic artwork with the appropriate tags so that innocent bystanders are not "traumatized" by my mildly deviant tastes (I am not a furry, and I'm not into tentacle porn or anything illegal).