Wikis are catching on in the Humanities Computing world and being used in several ways. The most prevalent use seems to be for documentation purposes, but here are a few random examples:
The Digital Classicist (blog at http://www.digitalclassicist.org/) uses a wiki for a FAQ and to track projects and ideas related to the intersection of humanities computing and classical research.
A similar effort by TADA (Text Analysis Developers Alliance) can be found at:
The “working” area for the new online version of Digital Humanities Quarterly is being done on a wiki: http://www.digitalhumanities.org/en/DHquarterly
Matt Bowen, with some funding from MITH (Maryland Institute for Technology in the Humanities) has been working on a community writing site, the latest incarnation of which is at:
The idea of using wikis for collaborative creative writing seems particularly appealing to middle/high school teachers, at least, they seem to be the most well-represented group at Wikispaces. You need an account there to see many of them so I won’t include links.
Of course, in true web tradition, many of the people talking most loudly about wiki’s are educationalists presenting at conferences or publishing in education journals about the POTENTIAL rather than about what they have already done. C’est la vie.
It might be fun to see if any of the “usual suspects” from the MUDer, MOOer, hypertext fiction crowd from the last couple of decades are making the leap into wikis. Eastgate (the hypertext publishers) has a compendium of hypertext courses from various colleges, might be worth a look see.
The wiki model, if not direct application, is also alive and well in the games world, but that’s a whole ‘nother topic…