Meet up with Montana Linux people on IRC. We currently gather at the #ubuntu-montana room on the freenode network. Stop in and say "hello" or even ask/answer some questions. Don't have to be a Ubuntu user either. Or use the web-based chat client.
See also the MontanaLinux.org calendar provided by Zimbra in both iCalendar and http formats.
BillingsLUG
The BillingsLUG meets the 3rd Thursday of the month at 7PM. This month: