InterWiki is the idea of linking wikis together.
Historically, the term referred to having one wiki, distributed across several servers; See:DistributedWiki, OneBigWiki (SwitchWiki), WikiWebTransferProtocol, WorldWideWikiWeb, MultiServerWiki
Over time, InterWiki has come to mean connecting existing wiki, of various WikiEngine types, together.
The idea has expanded even beyond wiki: Connecting all willing communication systems together into a gigantic mesh of software. See IntComm wiki, WebServices, WebServicesDiscussion.
InterWiki organizing happens all over the web. Many wiki and mailing lists contribute substantially to InterWiki efforts. Wiki include MeatballWiki (http://www.usemod.com/cgi-bin/mb.pl?MeatballWiki), CommunityWiki (http://www.emacswiki.org/cgi-bin/community?RecentChanges), and the InterWikiWiki (http://www.communitywiki.org/cw/InterWiki/).
Not all InterWiki work is technology work; Some of it is purely social (introducing sympathetic wiki communities to each other) - like the TourBusStop project, some of it is standards based (WikiNodes; http://cc.msnscache.com/cache.aspx?q=wikinodes+lionkimbro&d=74051118843292&mkt=en-US&setlang=en-US&w=e5345dbf,335521d ), some of it is legal. (http://wikilegal.wiki.taoriver.net/)
Alas, two wiki – “Wiki Futures” and “Wiki Legal” – are offline as of 2008-03-11. In a couple of months, if they are still offline, please delete those delegations.
Work on InterWiki technologies and conventions has been in effect for a long time now. SisterSites and InterWikiLinks have been around for a long time.
New linking technologies such as the
The future appears to be less Inter-Wiki and more Inter-Net.
What has been called wiki appears to be becoming the document arm of PublicInternet Communication, meshing with threading friendly systems, blogs, identity services, resource sharing, and existing online communities.