I tried it. That is pretty useful.
So basically it takes any web page that you are on and creates a link you can
paste into an AsciiDoc.
e.g. using the
Copy as AsciiDoc extension on this page
http://discuss.asciidoctor.org/I-developed-a-Chrome-extension-Copy-as-AsciiDoc-td4944.html[Asciidoctor :: Discussion - I developed a Chrome extension: Copy as AsciiDoc.]