Every now and then an article appears in your RSS which blows your goddamn mind. This is one of those, friends. It’s long, but honestly, it’s absolute gold.
I think folks who work in client services like agencies and freelancers will find this especially useful, because ideas like Jake’s context — an SVG map — crop up rather regularly. It’s also a very useful pattern for users, so seeing it built in a way that actually services everyone is great to see.