Mariann Regan has written for local audiences at times, in order to educate and persuade specific groups of readers.
(1) She began the Faculty Welfare Committee newsletters, which were distributed internally to the Fairfield University faculty, staff, and administration, in December of 1989. The newsletters have continued until this day.
(2) Regan initiated The Reluctant Environmentalist blog on the Fairfield University website during the Spring 2008 semester, at the request of Professor Dina Franceschi, Professor of Economics and head of the Environmental Steering Committee at that time. Franceschi asked Regan to contribute an environmental blog on topics related to the University’s effort to progress "from red to green" (the University’s colors are red and white).