Help End Prison Gerrymandering Prison gerrymandering funnels political power away from urban communities to legislators who have prisons in their (often white, rural) districts. More than two decades ago, the Prison Policy Initiative put numbers on the problem and sparked the movement to end prison gerrymandering.
Census Q & A from the Center for Voting and Democracy (very short)
Redistricting Roulette from the Center for Voting and Democracy. Interactive explanation of how subtle differences in drawing the lines between political districts can radically affect the outcome of elections.
Redistricting in America, A State-by-State Analysis by the Rose Institute provides a comprehensive and up-to-date survey of legislative and congressional redistricting systems in each of the 50 states. "Redistricting in America" offers a behind-the-scenes look at the complex and ever-changing world of redistricting.
Understanding Redistricting from WXXI in Rochester NY. Has explanations and links to other mapping and database resources.
VoteLaw from Edward Still. "the intersection of political and law: redistricting campaign finance, the right to vote, election law administration and politicans in trouble.
ElectionLaw Blog from Professor Rick Hasen. "The law of politics and the politics of law: election law, the California recall, campaign finance, legislation, voting rights, initiatives, redistricting"
Proposed finding and recommendation [PDF] submitted to the Residence Rules in the Decennial Census Panel, at the National Academies, June 2, 2005, Prepared by Peter Wagner, Eric Lotke, and Andrew Beveridge