Doomwiki (IRC channel)
#doomwiki was spun off from #doom-tech shortly after the launch of the migrated Doom Wiki in September 2011. The latter was the de facto channel for wiki-related issues, but following the relaunch, the wiki became a sufficiently popular topic to warrant its own channel.
#doomwiki is not used for making policy decisions as not all editors are present on IRC all the time. Instead the channel is used for handling small items of administrativa, or just getting questions answered more quickly than waiting for a reply on a talk page.