The transportation field has for many years been dominated by engineers and other technical specialists. This article describes the Sustainable Mobility Learning Lab (SMLL), a Web-based tool designed to support classroom and university outreach activities to help initiate a more inclusive, nontechnical discussion about the role of transportation technology and human behavioral changes in sustainability. The SMLL includes both a general, "one-room schoolhouse" approach, in which Web users at a variety of levels can participate, along with classroom exercises for more targeted education. In our first runs with the project, the students were engaged with the material and reported positive experiences, and the Web-based format has allowed us to use the materials in a variety of outreach and open source settings. (Contains 2 tables and 2 figures.)