Appreciate the likes on my comments above re BrandMeister.
On Friday a friend, also using DroidStar, alerted me to M17 conversations in the form of a net based in Australia. It was on M17-432, Module H (think "ham"). For both of us it was the first time encountering so much activity.
The Alaska Morning Net followed, after 1200 ET, and then the PAPA Antenna wrapped up my Friday evening listening.
Much to learn about M17, and we have begun to scratch the surface. In trying to figure out the equivalent of DMR talkgroups, one has to look at both M17 Hosts and Modules A-Z. Permutations are many.
I dug around a bit, not being familiar with M17 terms and verbage, and it took a while. I found a Discord, a Twitter account, forums and Reflectors. I expect to find more information but started to update the M17 links on my website. The direct link is...
amateur radio, ham radio
w2xq.com
... and I tweaked the DroidStar Configuration PDF.
Your suggested additions to the M17 links' compilation are welcome.
HTH. Giddyup.