Small update on http://markodenic.com: long posts now have a table of contents. • It's built from the post's headings, so I don't maintain it by hand. • It only shows on posts with 6+ sections, so short posts stay clean. • It highlights the section you're reading as you scroll. • It's a sticky sidebar on desktop and a collapsible box on mobile. See it in action: http://markodenic.com/http-status-codes