How much effort does it take to start or manage a community on interests.me?

There is not a lot of day-to-day effort involved, but getting things started is the main task.

Being the administrator for an interests.me community is a little bit like being an administrator on a Facebook Group, except the levels of activity are likely to be lower, since Facebook Groups invite comments by members of the public, whereas interests.me invites events or articles by local organisations and does not offer a discussion forum.