This U.S. Department of Education website provides department resources on adequate yearly progress.
The U.S. Department of Education funded Center for Research on Evaluation, Standards, and Student Testing conducts research on important topics related to K-12 educational testing.
This link is to the Education Commission of States policy issue site for charter schools.
This Rand Education publication offers recommendations for more effective test-based accountability systems.
The center is a collaborative effort of the Education Commission of the States, the University of Texas at Austin and Just for Kids to improve learning through the effective use of school and student data and the identification of best practices.
This link is to the National Charter School Resource Center funded through the U.S. Department of Education and operated through Learning Point Associates. As noted at its website, "The National Charter School Resource Center (Resource Center) serves as a national center to provide on-demand resources, information, and technical assistance to support successful planning, authorizing, implementation, and sustainability of high-quality charter schools; to share evaluations on the effects of charter schools; and to disseminate information about successful practices in charter schools."
This eight page PDF report from the Education Trust details the core requirements and basic principles of Adequate Yearly Progress under the No Child Left Behind Act.