Omeka is a free, flexible, and open source web-publishing platform for the display of library, museum, archives, and scholarly collections and exhibitions. We use a heavily modified install to demonstrate the possibilities for information sharing in various research and teamwork applications. In particular Omeka seems well-suited to first-sweep spatial data analysis. Ideally researchers would review a map or image resource together (over distance, potentially) before breaking it down for detailed evaluation or analysis in GIS.
The way Omeka works is simple: collaborators are given accounts, which are tied to alterations and notes they make to images (as well as the associated metadata). We also have a couple of examples of alternative uses of the application. This website serves as a working demo.
Civic development, urban planning and site reference
A smaller, easier to manage image of the "downtown" area. A working example of collaborative annotation and linking to external resources.