Prisoner Rights - covers a spectrum of prisoner issues; from the American Civil Liberties Union.
Prison Diaries - Audio journals from five prison inmates, a judge, and four correctional officers, recording the sounds of everyday life behind bars in the year 2000. From NPR's All Things Considered and American Radio Works.
Debt to Society - investigative series that includes a look at the costs of incarceration, and conditions in prisons. Also features a statistical, state-by-state incarceration atlas. From Mother Jones, July 2001.