OT: I expected this to be about smart matter (or wellstone). http://en.m.wikipedia.org/wiki/Programmable_matter But html is cool, too. ;)

Yeah, I thought it was some amazing new scientific discovery of materials that could act like other elements, or something.

>Show URL's of links in printed web pages

Oooh, I like that one. Simple and effective. And I wasn't aware you could use {content: attr(attribute_name)} to pull from the node.

This gives me ideas. Thanks for the link!