This format was creted by google for the purpouse of mutch smaler images, with suport of animation (gif), transparency (png), and compression (jpg). They try to do the best of the various formats in one format. Its optimized for portable.
Today there are not lots of websites using this format, but as you can see, is almost inevitable the use off this image format.
I already started to find some websites with this format, and as I save the page in evernote, as expected, the image does not apear.
So I opened this post asking the suport for this already imerging image format.
https://en.wikipedia.org/wiki/WebP
http://havecamerawilltravel.com/photographer/webp-website/
