Polyamory is literally “many loves” (though as the geekier know, it is mixing Latin and Greek root meanings. LOL.
Anyway, I listen to a number of polyam podcasts and follow several Twitter feeds. Here’s the ones I regularly support.
Multiamory, hosted by Emily, Jase, and Dedeker, is a podcast I’ve been listening to for a couple years. I recently got off my duff and started supporting their Patreon.