GIS Research and Application Areas - from Tufts University - examples of how GIS is used in research in various fields pertaining to urban and environmental analysis. These are examples for the GIS classes there.
GIS and Mapping Tools from Design for Health http://www.designforhealth.net/index.html - Design for Health is a collaborative project that serves to bridge the gap between the emerging research base on community design and healthy living and the everyday realities of local government planning. The LEAN and NEAT GIS protocols for measuring food and physical activity environments are especially useful.
GIS, Energy, and Climate Change - from Tufts University -an overview of some of the ways GIS is used to research the impacts of climate change.