Many authors and institutions claimed for the integration of disabled individuals into society by the use of the technology. In the case of multimedia content, the problem of accessible information is not seen to be chronic or unsolvable. In the new social web scenario, an increasing number of multimedia resources are available on the internet. Unfortunately, most of them are not accessible. Given that the conversion process of such resources is human capital intensive, and not always viable from aneconomic point of view, new and effective solutions must be made to address this accessibility gaps. In this scenario, methods stemming from Computer-Assisted Cooperative Work (CSCW) and Social Web can be an effective way to achieve audiovisual accessibility in an affordable and effective way. The current work proposes the definition of a reference architecture which uses CSCW techniquesbased on social web, with the objective of converting multimedia resources into accessible resources in a quicker and more effective and efficient way.