My next step with this redesign is to add Tumblr “notes”, which are a list of who’s reblogged or “liked” an individual post.

Unfortunately the documentation for this feature is a little sparse. And badly copyedited: “Rendered on permalink pages this post has notes”. Sigh.

The slick Notes functionality on sites like this is what I’m after but I’m not sure how much of that is provided out of the box and how much the designer implemented with Javascript. More investigation required.