Open States is a collection of tools that make it possible for citizens to track what is happening in their state's capitol by aggregating information from all 50 states, Washington, D.C., and Puerto Rico.
Created by the Human Development Project, this site uses a straightforward 10-point scale to measure the "well-being of America," which is defined by three major factors: health, education, and income. Data are displayed through interactive, color-coded maps of the US.
A searchable collection of election returns from the earliest years of American democracy. The data were compiled by Philip Lampi. The American Antiquarian Society and Tufts University Digital Collections and Archives have mounted it online for you with funding from the National Endowment for the Humanities.