The Facebook group is getting more subscribers. How I see that working out is that while this list (Collab) can be used for planning, the FB group can be more open to diverse kinds of contributions. If it gets busy, however, I'm not sure that I'll have time to manage it alone.

It may be worth considering a page on LinkedIn. 

There is a Twitter handle - @NAmericaMillets - but I'm not actively posting there.

Best to all,

Don