Guilds in massively multiplayer online games like World of Warcraft deal with conflicts that arise from coordinating group activities and different expectations among members. Guilds use tools like online calendars, message boards, and requiring members to share contact information to help coordinate activities and communicate about scheduling issues. If interpersonal conflicts occur, guild leaders will typically talk to the members involved first, and may remove problematic members through kicking them from the guild as a last resort. The ability of guild leaders to remove members gives them a type of power within the guild social structure to enforce rules and manage coordination and conflicts.