I nearly started work on writing a plugin to accomplish this myself. I was writing an article and wanted to link to a specific section in a previous entry. Then it occurred to me that surely someone had written such a plugin.

Indeed someone had done. Beau Smith, a former Six Apart employee, made this plugin. With a tiny tweak, it was precisely what I wanted. Fortunately for us, he’s also posted Heading Anchors on GitHub just in case his site were to ever go down.