Jay Marcyes

Good wallpaper site with lots of high quality widescreen images.

Boing Boing just used this search engine to find the real photo for the Borneo monster, From the faq:

TinEye is a reverse image search engine. You can submit an image to
TinEye to find out where it came from, how it is being used, if
modified versions of the image exist, or to find higher resolution
versions. TinEye is the first image search engine on the web to use
image identification technology rather than keywords, metadata or
watermarks. For some real TinEye search examples, check out our Cool Searches page.

Allows image rotation using jquery and the canvas tag.

From the page:

Ever wanted to find a font just like the one used by certain publications, corporations, or ad campaigns? Well now you can, using our WhatTheFont font recognition system. Upload a scanned image of the font and instantly find the closest matches in our database.

P.S. I also want to buy some of these FAIL stickers.

description from the page:

It's a machine vision library, written in simple
C++ and based on the Torch machine-learning library.

Looks like you can do some face recognition stuff using this library.