Leigh is a co-founder of VRCO, the GeoWall Consortium and the Global Lambda Visualization Facility. Leigh currently led the visualization and collaboration research on the National Science Foundation's OptIPuter project, and EVL's Tele-Immersion research since 1995. His main area of interest is in developing collaboration technologies and techniques for supporting a wide range of applications ranging from the remote exploration of large-scale data, education and entertainment.