Clan

Clans are groups of players associating themselves under a single name, like a team. A Fan Site Kit is available to help clans make their sites look legit, and some of the clans can be found here

Advantages
Being in a clan give access to clan chat which can be used by every clan members. Being in a clan allows you to be able to contact other players more easily and thus get more help from more advanced players.

Joining
Joining a clan can be done either by being invited to a clan by a current member or by typing in the name of an existing clan in the clan join box in the contacts window and getting approved.

Creation
Clans can be created in the game with the contacts window by typing in a name of a clan that has not yet been created.

Clans
The following is a list of clans, Clan tag, clan image, clan web sites, and clan leaders. maybe a clan ranking if that ever happens.