Blizzard's first expansion for StarCraft 2, Heart of the Swarm, will introduce clan support to the game when it's released.
After creating a clan, players will be able to pick a name and a 2-4 character tag that will appear in front of each player's name automatically. Since clans are "geared towards teams of players participating competitively in StarCraft 2", numbers are limited to 50 players.
Blizzard has said it is "working on support for Groups: players who want to associate casually, and in larger numbers".
Clan support will be part of the StarCraft 2: Heart of the Swarm test build included in the next major beta patch.
Analysts have said the a 2012 Heart of the Swarm release date is "increasingly unlikely".