Dr. Kellogg is an active member of the Sustainable Sanitation Alliance and a sanitation consultant to projects in Ghana and Kenya. She has written successful grants to increase the number of household toilets in urban poor areas. Her current research project focuses on the qualities that make public-private partnerships (PPPs) effective. As a management consultant, she has delivered leadership and interpersonal communications programs for large multi-national corporations. Among her clients are Avaya, BP, DHL, Blue Cross Blue Shield, Ford Motor Corporation, Deloitte, The MathWorks, Economic Development Council of New York City, The National Association of CFO's for the Arts, The Aetna, Genzyme, Marsh-McClennan, the Mass Dental Society, Yankee Dental Association and Biogen-Idec.