Curator's Code
An interesting project aimed at standardizing the methods of attributing online content. This system uses unicode symbols proceeding hyperlinks to the contents source to indicate either direct attribution ("via") as ᔥ and indirect attribution ("hat tip") as ↬. For those who cannot remember the syntax (myself included) there's a bookmarklet to help you out.
I like the idea, therefore, I've pledged to follow these conventions from here forward.