If you are looking for legal representation you may want to contact one of these organizations:
The Innocence Network is an association of innocence projects in nearly every state in the nation that represent people who were wrongfully convicted of crimes. Here is a list of innocence organizations with each organizations' criteria for accepting cases.
The Innocence Project is a nationwide organization that represents people in cases in which there is physical evidence that could be tested for DNA to show that the defendant is actually innocent.
The Center on Wrongful Convictions at Northwestern University School of Law represents people with claims of actual innocence.
Research and Education
The Death Penalty Information Center is a national non-profit organization serving the media and the public with analysis and information on issues concerning capital punishment.
Convicting the Innocent: Data and Materials provides detailed information on the first 250 DNA exonerations in the United States, including data on false confessions, eyewitness misidentifications and forensics. This research was compiled by Brandon Garrett, author of Convicting the Innocent: Where Criminal Prosecutions Go Wrong.