As Stack Overflow seems to be unable to create links from URLs that have spaces in them, copy and paste this URL into your browser.
http://grooveshark.com/#!/search/song?q=we will rock you
It does not redirect you to ...song?q=we%20will%20rock%20you
or anything like that.
The spaces just simply stay there. When I first saw this, it looked so foreign to me. How is this achieved?