New York's Center for Technology in Government organized a "cohort" of state and local government teams, all of whom wished to offer services by using the World Wide Web as a delivery platform. For the most part the cohort model was beneficial by providing opportunities for additional learning, for information sharing, and to build on the experience of others.
Larsen, Kai R. and McInerney, Claire R., "Using the Cohort Model in Development of Web Sites and Web Policies" (1997). AMCIS 1997 Proceedings. 334.