The states have their own organization called The Council of State Government. One of its missions is to promote the sovereignty of the states and their role in the American federal system.
http://www.statesnews.org

Everything you always wanted to know about the states but were afraid to ask can be found at State-Search. This service of the National Association of State Chief Information Officers is designed to serve as a topical clearinghouse of state government information on the Internet.
http://www.nascio.org/statesearch

Assessing the New Federalism. This is an Urban Institute Research project to analyze the devolution of responsibility for social programs from the federal government to the states, focusing primarily on health care, income security, job training, and social services.
http://newfederalism.urban.org

Federo. Federalism is not a purely American concept. This site aims to encourage the development of an active and informed citizenry on federalism as a genuine solution to Uganda's past woes.
http://www.federo.com