This may be a personal itch, but at least for personal archiving needs, I’m sick, sick, sick of the recency bias that’s eaten the internet since the first stirrings of Web 2.0. Wikis are practically the only sites that have escaped chronological organization. It would be cool to have easily-manipulated collections with non-kludgey support for series ordering, order-by-popularity, order-by-popularity with a manual bump for posts you want to highlight, hell even alphabetical ordering. None of these things are remotely unsolved problems, but they’re poorly supported on the social-media silos most people’s content lives on these days.