YahooGroups shut down in December 2020, and that had been what we were using for the local bi email lists.
I still think email lists are worth having! as not everyone likes Facebook or Twitter or whatever. So I’ve re-set-up the lists on Groups.io.
If you were on one of the old lists, you probably had an invite at the time of the changeover, but you can also just join from the group page.
If you’d like to (re)join, take a look: https://nottinghambi.wordpress.com/email-lists/