It would be nice to know for each of these:
- serving AllPages or another format? logo?
- links to code if available
WikiEngines that implement SisterSites:
- WardsWiki (Perl) - http://c2.com/cgi/wiki?SisterSites - Ward included some code in his Coding Tips for Wiki Sister Sites - http://c2.com/doc/TipsForSisterSites/sisters.pdf
- MoinMoin (Python) implementation (by JuneKim) - http://xper.org/wiki/seminar/SisterSites
- ProWiki implements it.
- Leuf.net's implementation - http://www.leuf.net/ww/wikiref?SisterSites
- TwikiClone page on it - http://twiki.org/cgi-bin/view/Support/CreatingSisterTWikis - At the beginning looks like someone meant InterWikiLinks. Password required for editing, so didn't ask if they meant NearLinks at the end.
- enter TWikiGuest for username and password to edit most TWiki wikis without creating an account (but you should still sign your WikiName)
- It's been done with ZWiki (but does not come with the standard distribution). link?
Also see SisterSitesImplementationGuide.