This compendium describes nearly 100 national, regional, and state resources, including data sources, initiatives, Web sites, studies, and reports related to teacher mobility. It offers policymakers, researchers, and educators information and approaches to guide research and focus policy discussions on particular aspects of teacher mobility. Topics covered include: general resources; teacher supply and demand; compensation; hiring and recruitment; licensure requirements and credential reciprocity; and pension portability. The compendium highlights the wealth of information on each issue and also sheds light on gaps between what studies suggest will make the profession more attractive and actual policies and practices at the state and local levels. The three indexes include: organization/agency/state index, alphabetical index of resources, and keyword index. (SM)