The system’s error screen, known also as the Blue Screen of Death, is a touch of class in this simple 404 error page taken from Behance, the online community for creative professionals.

Trent Walton’s website displays a hilarious 404 error page, inspired by Ghost Busters characters.

Another clean and simple 404 error page taken from Brightkite’s website.

Nice error page from Springload, a smart duo agency,.

I’m sure it was here…last time I checked: beautiful humorous 404 illustration from Bol.com.

If you still didn’t get the message, your page is not found!
An aggressive, but funny visual treatment taken from The Brand Surgery, a young English branding agency.

Propeller is a social news portal made of submitted links and stories from the web, where you can obviously vote stories up & down via the prop it/drop it function.
We are proud to introduce you this funny, vintage cartoon illustration from its 404 error page.

Busy, busy time so W&P post rate is a little bit slowing down. While we find and reach new sources of power and inpiration, you can enjoy Agens‘ funny (or sad?) error page.

A nice error page, clearly shaped as a navigation flow chart, from Konigi’s, a reference website for what concerns user experience and interface design.

Sometimes not founding what you’re looking for could be sooooooo frustrating: that’s more or less what this funny illustration from CSSRemix error page is trying to tell us.

Giveusalift is the name of  WRVS‘ website.
WRVS is a national charity that thinks every older person in Britain has the right to live the life they want.
Despite this serious mission, the website is really cool, with lots of nice graphics solutions and this absolutely funny 400 error message. It’s true, sense of humour never ages!

Feedly, IMHO, it’s a must-have Firefox add-on. In substance it’s a RSS reader, based on Google reader, that makes your contents look stylish and magazine-like as if they were designed by the coolest graphic studio in town. Add to this a nice karma feature that shows you how people react to your tweets.
(Un)fortunately we haven’t [...]

First I didn’t understand who was Daisy. Then when my brains started firing on all cylinders I realized it was a beautiful, funny 404 error page slightly inspired by The Wizard of OZ.
If not entirely, I’m a little bit of Scarecrow myself.

Owly’s missing: have you seen it?
One of the cutest, most clever, moving illustration ever made for a funny 404 error page.

Gosh. We’ve caught it again: the 404 disease!