/gnomerp: I assume this is a roleplay channel for gnomes, OOC or IC?
/thecoven: OOC channel for villains and dark entities, please do not ruin it all by joining if you are a hero devoted to hunt down these kind of people.
/TanarisRP: Roleplay in Tanaris I assume, OOC or IC?
/OSR: Old School Raiding, join if you enjoy the raids of past expansions and vanilla, and would like a central place to look for your groups.
/Argent: Alliance side OOC channel for anyone with an interest in what's going on with the folks up in Hearthglen. Password restricted - ask an Argent for it.
/Gilnean: A channel for Gilnean roleplay!
/KalimdorRP: OOC channel for Kalimdor roleplay
/Exodus: Draenei roleplayers community.
/NARC: Not much to do with narcisists, but rather the North Alliance Roleplay Community. This includes Lordaeron and the proud realms of the dwarfs - Khaz Modan!
/Retronoob: The horde's answer to old school raiding, join if you enjoy the raids of past expansions and vanilla, and would like a central place to look for your groups. This channel have one strict rule, and that is that there should be no reserving on items. Loot shall remain fair and for everyone who participates.
/wardrums: an ooc channel intended to give folks roleplaying trolls a channel to ask questions, discuss, and advertise.
/TheGreenScene: a channel for goblins, started by those Gearfist chaps.
/TheEarthenRing: IC a Shaman only channel for communication via air spirits for members of the Earthen Ring.
/Roleplay: Out of Character channel for those of us who dislike LFRP for its out of character features and "spam".
/Forsaken: A channel for the OOC communication and discussion of Forsaken lore with undead enthusiasts and the like.
Inform me of more channels that you are sure exist, if you give out a roleplay channel, please do state if it is OOC or IC, also remember to explain what the tool is being used for the IC channels, if it is not just text based roleplay (examples of tools: buzzboxes, attuned crystals). Eventually report for sticky, so that this will get on top for all new forums users.