The long agonizing mystery of whether or not Halo 3 will have clans. The answer is revealed in Bungie’s latest podcast episode. Sorry to break the news but there will not be any clan structures in Halo 3. There is talk about an update to the Xbox 360 that may happen in the future. For more details about the Halo 3 game as the Bungie crew talks about different aspects of the game check it out here at Bungie.
http://www.bungie.net/News/content.aspx?type=news&cid=12691
http://www.bungie.net/News/content.aspx?type=news&cid=12691