Using a wiki is not unique for documenting a project. However, if you've not thought about how to use one, then viewing this by the Ohio Newspaper Digitization Project may provide some inspiration. And if you surf the site, be sure to look under Documents for pointers to presentations and other materials.
Please note that this project is a work-in-progress. The first roll of microfilm (a sample) was digitized in December 2008.
Technorati tag: Digitization