In fit of insanity, searched for sites that used emacs-wiki. Quite a list.

– http://www.self-core.org/~kaoru-k/wiki/EmacsWiki.html
– http://larve.net/people/hugo/2003/scratchpad/EmacsWiki.html (has RSS)
– http://www.oranda.demon.co.uk/planner/EmacsWiki.html (uses planner)
– http://members.iinet.net.au/~mtriggs/emacs-wiki.html (has a gallery)
– http://gohome.org/teranisi/EmacsWiki.html (has recent changes)
– http://www.gohome.org/teranisi/news/ (hey, nice linking)
– http://www.naney.org/personal/diary/2002/04/c.html#200204224 (like planner, but several days on a page)
– http://senzai07.poly.kit.jp/~iwata/EmacsWiki.html (uses the emacs-wiki-rss module, I think)
– http://www.geocities.co.jp/SiliconValley-SanJose/7474/EmacsWiki.html (nice index)
– http://www.iris.dti.ne.jp/~yoshimik/EmacsWiki.html
– http://homepage.mac.com/yenlung/WebWiki/EmacsWiki.html
– http://www.apollostar.com/k-ishii/EmacsWiki.html
– http://db.cs.hit.edu.cn/people/WangChunyu/wiki (zope, also)
– http://verify.stanford.edu/satyaki/emacs/EmacsWikiTricks.html (fontlocking)
– http://verify.stanford.edu/satyaki/backpacking/EmacsWikiAlbumCreation.html (album)
– http://satosan.jp/EmacsWiki.html (looks like some planner, too, but very old version)
– http://tkskkc.at.infoseek.co.jp/WebWiki/emacs-wiki.htm
– http://senzai07.poly.kit.ac.jp/~iwata/ChalowForEmacsWiki.html (changelog on the web)
– http://gnufans.net/~deego/DeegoWiki/WikiIndex.html (deego)
– http://www.frankgerhardt.com/WikiIndex.html (indexed by date)
– http://www.math.tu-berlin.de/~baier/WebWiki/Public/WikiIndex.html
– http://www.archi.is.tohoku.ac.jp/people/yusuke/Emacs-wiki.html (planner and remember, but some old workarounds)
– http://mux03.tdiary.net/20031206.html (nonplanner diary with headlines on the side, but actually running on tdiary not emacs-wiki)
– http://air.zive.net/emacs-wiki/EmacsWiki.html
– http://www.biostat.umn.edu/~nali/AboutThisSite.html (source link, good idea)
– http://www.ntu.edu.sg/home5/PG04878518/EmacsTools.html (grid computing)
– http://www.self-core.org/~kaoru-k/wiki/EmacsWiki.html (planner, looks old style and custom)
– http://www.teria.com/~koseki/emacswiki/EmacsWiki.html
– http://www.xatax.de/phobos/WelcomePage.html
– http://aadis.de/wiki/PageIndex (referers, index, search)
– http://supermon.sourceforge.net/ (on sf for work)
– http://www.tc.bham.ac.uk/~matt/WikiIndex.html
– http://home.earthlink.net/~rdtietjen/Hypersphere/BackLinks.html#wikiweb (hmm, backlinks might be fun)
– http://ne.cs.uec.ac.jp/~miya/WebWiki/WikiIndex.html (simple)
– http://www.8ung.at/rotty/Software.html (planner)
– http://www.ceres.dti.ne.jp/~george/jdiaryA21001.html#2002100701 (brief mention)
– http://www.apollostar.com/k-ishii/TableOfContents.html (internationalized links, too)
– http://saslab.is.titech.ac.jp/~nakaya/WikiIndex.html
– http://tao.uab.es/jao/ – just one page
– http://www.cs.unc.edu/~lastra/Courses/Verilog/talk/html/WebLinks.html (for courses)
– http://kind.cs.kun.nl/~kiniry/Wiki/WikiIndex.html (planner custom)
– http://www.contactor.se/~matsl/WikiIndex.html
– http://viz.aset.psu.edu/ga5in/WikiIndex.html
– http://www.nongnu.org/xmakemol/WikiIndex.html
– http://dev.gentoo.org/~mkennedy/WikiIndex.html
– http://www.ipd.bth.se/mhy/KB/WikiIndex.html
– http://www.aoc.nrao.edu/~bwaters/Wiki/WikiIndex.html (planner)
– http://www.daimi.au.dk/~terryp/WikiIndex.html
– http://www.geocities.com/CapeCanaveral/Lab/6422/WikiIndex.html
– http://www.1729.com/wiki/WikiIndex.html (not sure)
– http://elektrubadur.se/WikiIndex.html
– http://home.t-online.de/home/c.ehbrecht/WebWiki/WikiIndex.html
– http://alcor.concordia.ca/~peter/WikiIndex.html
– http://www.ime.usp.br/~renato/WikiIndex.html
– http://www.cs.brown.edu/people/roth/WikiIndex.html
– http://www.geocities.co.jp/SiliconValley-PaloAlto/7043/WikiIndex.html
– http://www.cs.utexas.edu/users/hllu/WikiIndex.html
– http://www004.upp.so-net.ne.jp/nagae-r/WikiIndex.html (diary file)

Google for WikiIndex and find many, many more.

Notes

– http://www.me.ics.saitama-u.ac.jp/~hira/emacs/howm/ has some ideas for guids and grep.
– http://d.hatena.ne.jp/tengsama/20030704 mentioned emacs-wiki