pouët.net

http://fractal.io/

Some info: http://www.subblue.com/blog/2011/3/5/fractal_lab

Wtf. Unsupported browser. Latest chrome. WebGL was working last week, apparently "almost latest chrome" is required ;(

use Chromium and the --enable-webgl switch and it will work fine

To be found by...?

Dies every time I hover or click a button on the Chrome Canary Build, which has ran WebGL stuff pretty well in the past.

Impossible fractals:
http://www.cameronius.com/graphics/impossible-fractals-figures/