To facilitate communication within SL-NET and with people outside it, I set up a mailing list hosted by FreeLists, started an SL-NET group in Second Life, and created a Google calendar for scheduling our events.
Anyone can subscribe to the mailing list by sending an email to sl-net-request@freelists.org with 'subscribe' in the Subject field.
Someone can join the SL-NET group in Second Life by using the Search function to find the group, and then clicking on the Join button.
The Google calendar is public. Anyone interested in our events may open it in a browser or subscribe to the feed.
We're also looking into ways to provide forums for RL discussion.
