WHAT
A very simple search workflow on caniuse.com for those who don't want to spend 6 seconds on opening your default browser and type "can i use" in the search field,
or spend 3 minutes on making your own custom workflow. So here you are. I know I'm going to use it often.
HOW
"use {keyword}"
WHERE
Grab the workflow here
http://cl.ly/Pbr9