It's helpful for us to think about different approaches to constructing a wiki for literary peers. Here are a few recent and ongoing projects that have some elements we may want to emulate:

The British Literature Wiki: very broad resource constructed over numerous iterations of a survey. We're working a much smaller "postage stamp of native soil," but this site gives a good model for constructing entries, especially broader, longer entries. And the authors use images very nicely to illustrate throughout.
The Merchant of Venice Wiki: kinda messy but very nutritious. I think the site shows the challenge of how to make a resource like this navigable and coherent.
The Gender, Race, Science, Technology (GRST) wiki: a bit anomalous, since it seems much more of a resource for each semester's run of the course. The instructor thus seems to use the wiki as a Course Management System, more or less, the way others use Blackboard or Moodle. But again, there's a lot to be learned from the mode of presentation in particular entries.
The Romantic Audience Project wiki: also a bit eccentric for our purposes, but this is an admirably clear presentation of a messy process/product, in which collaborators write a loose essay together that's "mapped" for readers' navigation.
Equality Archive: encyclopedia started by faculty at Baruch/CUNY with entries written by a wide range of scholars and activists. This is a scholarly-grade resource, with careful vetting of writers and editing of entries.