Clans

Reposted from ign

Clans in Destiny are meant to be (according to Bungie) "intimate clusters of gamers who play together. Our hope is that everyone in a clan knows every other member."

To join a clan, sign into Bungie.net and associate your Xbox Live account to your login. Then navigate to the Clans home page and click "Request Join." I've linked to the Bada Bing clan for your convenience.
The maximum number of people that can join a Clan and still receive the in-game Tag is limited to 150 across Xbox and PlayStation. However you can still join the Group.
Groups are created at the same time a Clan is created. Once you join a clan, you also join the group of the same name. This is where you can talk with friends in a private area outside of the general forums.