The AC Portal is being developed to provide access, tools, and contextual guidance to scientists and value-adding organizations in using remotely sensed atmospheric composition data, information, and services and to foster interoperability and application of atmospheric composition data, information and services worldwide. The alpha release represents an initial version of the AC Portal for which we are seeking partnerships with other atmospheric composition community members interested in connecting data products, data analytical tools or other capabilities. The current version of the AC Portal is also intended to generate ideas and feedback to shape the beta release that is planned for the Fall of 2010.