WGBH recently received a grant from the National Science Foundation to enhance the utility and appeal of Teachers' Domain by integrating social media tools; expanding the reach and user base of TD; expanding TD's content offerings; and providing in-person and online workshops to support TD use. The Education Development Center's Center for Children and Technology (EDC/CCT) serves as the external evaluator of the project. Our first task is to help TD staff understand how educators are currently using social media tools for professional purposes and how the TD website can support teachers' professional practices. In order to accomplish this, we reviewed social media tool use on teacher resource websites, gathered information from prior research at CCT, and examined the preliminary wireframes prepared by WGBH. The second component of this task is to conduct teacher focus group interviews in February 2009.