On the form to apply for US citizenship (N-400) Part 11, item 9A asks:
Have you ever been a member of, involved in, or in any way associated with, any organizations, associations, fund, foundation, party, club, society or similar group in the United States or in any other location in the world?
And then 9B asks you to list those groups (name, purpose and dates).
That seems really broad. What would or would not count here? Obviously membership in a political organization would, but presumably a local book club wouldn't? And surely various internet forums can't count!?! Where's the line here?