Group leaders hold space for others.
If your group is event-based, that cadence of events is the main container you’re creating. Those events can be formal or informal.
If your group is online or has an online component, make sure you and other community managers are there: engaging, and encouraging others to engage.
Invite and welcome people. A new member’s first experience is very important.
Keep group leader relationships strong. Your positive energy will infuse the group.
Catalyze engagement, nurture people & ideas, make connections
The conversations and relationships are the magic that provides the value to group members and leaders alike. Sometimes this needs a lot of energy and structure, and sometimes you just need to get out of the way and let things happen.
Moderating conversations is an important job. Enforce the group’s ground rules.
Group administration can be the less-fun part of running a group. Seek to simplify and minimize these logistics, but not ignore them. See Tips for Running Groups.
Marketing is hard, but if you have the right people engaged, word of mouth goes a long way.
Mature and engaged groups, groups with very strong leaders, or groups that have an explicit mission to have an impact may try doing group projects like developing software, contributing to industry initiatives, hosting larger events & trainings, or pro-bono work. Partnerships can open the door to meaningful group activity and projects.