|See also:||Instant Messaging, AOL|
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AIM or AOL Instant Messenger is a major realtime chat client. It eventually became available for non-AOL subscribers and was a major platform for fannish group chats in the 00s. Its major rival during this period (at least among fans in the US) was Y!M (Yahoo Messenger). AIM continues to be used, but it has increasing competition from gtalk and other platforms for fannish chats.