John Sharp of eHealth directed me to this FCW.com article, NIH explores adding a wiki, by Aliya Sternstein. According to FCW.com the Chief IT Architect posted a request for information (RFI) that would enable "users to collaborate in forming the content of a Web site. This domain includes hosting and/or application products that support wiki technologies." While NIH is interested in applications that enable both highly structured and ad hoc types of collaboration it does want a system with a few more controls than most wikis have like authentication and authorization controls to accommodate the security and privacy requirements of the agency and its partners.

Other government agencies are using wikis to collaborate on projects. Currently, NASA employees rely on a wiki to modify open-source code in their satellite imagery viewing software, World Wind. Millions of people have downloaded the World Winds prorgram and use the wiki to suggest code modifications.