Following people outside of a feed

From an IndieWeb own-your-content standpoint, I’d want to post the canonical form of a board to my site and have it populate through to anyone’s collections. The board they designated for my material would be reusable, each update replacing the last on subscribers’ pages, but I’d retain a copy of the original content. Bloggers could designate a post kind as a “board” so only those pieces of content passed through, or could have a separate microblogging stream that fed out.