After an investigation of newsgroups that uncovered large amounts of underage pornography, New York Attorney General Andrew Cuomo began a large-scale expulsion of the material at the ISP level. Now there's an official Web site for the effort.
Last month, a statement from the Attorney General's office announced that agreements with Verizon, Time Warner Cable, and Sprint had been made to "purge their servers" of sites and Usenet groups that were found to contain child pornography.
Yesterday, Cuomo announced that the nation's first and third largest ISPs, AT&T and AOL, had joined in the endeavor, and will likewise block those same sites.
Furthermore, he has launched a site called nystopchildporn.com, which lists all participating ISPs, ranked according to national size: #1. AT&T, #3. AOL, #4. Verizon, #5. Time Warner, and #6. Sprint Nextel. Though it's listed as "email your ISP," the link actually serves as a list of all ISPs that have not yet joined in support for his cause. Number two US ISP Comcast, however, is missing both from the list of supporters and from the list of not-yet-supporters.
Comcast itself is under investigation by the FCC for blocking of a different kind: file sharing.