People with disabilities all too often face barriers to full inclusion in informal science learning. In a world where knowledge of science and technology is critical to informed decision-making and a range of employment opportunities, exclusion from science learning can prevent full participation in society. The report offers a theoretical framework for thinking about inclusion of people with disabilities in informal science education (ISE), then reviews current practice in museums (broadly defined), in media and technology, and in youth and community programs. While "investigations located a number of projects, initiatives, and organizations that have sought greater inclusion of people with disabilities in ISE," the report concludes, "these efforts are still the exception and not the rule." At the same time, the report points to positive examples of inclusive ISE practices and programs and identifies opportunities for systemic change.