PUG-L is the PUG Members' email list. It is a closed list meaning that only paid-up PUG members can receive and join in with the discussions in 'real-time'.
In early 2021 the list moved from a mailman host to groups.io
The new home of PUG-L is https://groups.io/g/PUG-L
As of 3 Jan 2021, we are just starting to invite existing list members to join the reborn PUG-L.
As of 10 Jan 2021, we have three-quarters of the membership on Groups.IO so it is very definitely open for business.
There is no need to consider it as anything more than a mailing list - you send messages to, and receive them via, email@example.com. Of course, if you want to search the archive (just the recent messages, the future of the old archive is still being considered) then you will need to log in to https://groups.io/g/PUG-L.
These instructions refer to the 'old' Mailman list which is still running at the time I am typing this.
To join, make your request to the membership secretary using the boxes on the list information page: PUG-L list information
That same page can be used to log in to your personal settings and to access the archive of past list messages - the archive is only visible to current list members.
Once you have joined the list, you can post a message to everyone on the list by sending it to: firstname.lastname@example.org
Rod Clayburn has, over many years, produced digests of the PUG-L discussions for the PUG newsletter and now those digest are being, gradually, put into PUGwiki to make them more accessible.
Note this is 'work-in-progress'.