State Constitutions (Indiana University Maurer School of Law). Guide includes:
Center for State Constitutional Studies (Rutgers School of Law Camden)
NBER/University of Maryland State Constitution Project. Project, by Economics professor John Joseph Wallis, is "a portal to the texts of the state constitutions of the United States. There have been almost 150 state constitutions, they have been amended roughly 12,000 times, and the text of the constitutions and their amendments comprises about 15,000 pages of text." The search feature is still in development; eventually, researchers will be able to search for words or phrases across multiple states.