Even in the world of zines and social networking, there is still a kind of Periodical Underworld, which isn’t as under the world as it used to be, but it’s still not quite mainstream.
Here is an AP story that I found through Google News, about the Prison Legal News (PLN):
Ex-con’s magazine focuses on advocacy, prison life, by JOHN CURRAN, May 24, 2009. Other releases of the story are here and here.