On a higher level than individual URLs and separate from browser favorites. Something like versioned packages of links with decorations.

Something like a ".urlpackage" format that will have

- a list of urls

- optional metadata for each url, such as image, description, last-known-good

- metadata for the entire package, including version, an image, a favicon, and a description for the entire package that a client could use to present it nicely to the end user.

It'd be cool if my phone could open this format, show me the image and description with the list of links, and let me browse them, add them to my bookmarks, or add to the collection and make a new .urlpackage that I could then share back or publish somewhere.

It's probably possible to simply do this with a self-contained HTML file or similar I guess, though.