Statuses
In general most micropub clients authenticate using an IndieAuth mechanism which micro.blog also supports and this allows apps (Newsblur in this case) to send formatted data (an article’s title, URL, and a person’s reply, for example) to be published on third party websites. Developers interested in the pieces might inquire in the IndieWeb chat about the quickest and easiest method for implementing or to see some other examples and find open sourced clients/servers that already do most of the heavy lifting: https://chat.indieweb.org/dev. It would be great to see Newsblur added to the growing list of clients that can publish to independent third party websites.
Unless and until Newsblur were to support this, I notice that it does have IFTTT support, so one might be able to carefully write some recipes that allows some functionality to dovetail with any website that has a micropub endpoint. I’ve documented some similar work I did using IFTTT to get the Inoreader feed reader to post reads, bookmarks, and replies to others’ sites to my WordPress website using micropub. I would abandon Inoreader for a reader with good Micropub support.
h/t to Jeremy Cherfas’ for bringing this to my attention.
Mandrake Illustration from Herbal illustrated in Italy, ca. 1520 (LJS 46)

In one superstition, people who pull up this root will be condemned to hell, and the mandrake root would scream and cry as it was pulled from the ground, killing anyone who heard it. Therefore, in the past, people have tied the roots to the bodies of animals and then used these animals to pull the roots from the soil.[2]
—Wikipedia citing John Gerard (1597). “Herball, Generall Historie of Plants”. Claude Moore Health Sciences Library. Archived from the original on 2012-09-01.
Several of us can give you help and guidance if you want to take a crack at it: https://chat.indieweb.org/wordpress/
Incidentally, if folks want to join this Obsidian book club on this text, it’s just starting and is comprised of a number of academics and researchers in a vein similar to CT. A quick web search should uncover the details to join.
(Got a Webmention from your post BTW. Congratulations!)
Tagging Tom Critchlow (@TomCritchlow) and Ton Zijlstra (@ton_zylstra) for their thoughts and maybe an update on any recent experimentation.
I do wonder if StoryGraph are planning on making the ownership of your own data on your own site easier? That might be a reason for some buy-in.
– Lifelong Learning Network
– Learning Atelier