Thanks for the advice. Thus far, I've not managed to be pre-emptive in uploading to LBRY (i.e. before I share them here...) so the link thing hasn't worked, but it would be easy to create a "buy here" link to go before/after each post.
I don't have a good way to do sound and/or video yet. I'd love to branch out, but so far I haven't seen a good way to do it for minimal investment while I'm still experimenting.