: <b>What?</b> [https://help.twitter.com/en/using-twitter/communities Twitter Communities] are created by anyone. Admins and moderators add rules and invite other people to join. Tweet, re-tweet to a certain community, have conversations within the community. | : <b>What?</b> [https://help.twitter.com/en/using-twitter/communities Twitter Communities] are created by anyone. Admins and moderators add rules and invite other people to join. Tweet, re-tweet to a certain community, have conversations within the community. |