Online forums where thousands of child-porn images have been posted have been stricken from three Internet providers, including two of the nation's five largest, New York Attorney General Andrew Cuomo announced…Verizon, Time Warner Cable and Sprint agreed with Cuomo to block access to child pornography disseminated through newsgroups and user groups, a hard-to-regulate sector of the Internet designed to bring together users with similar interests…The companies also agreed to eliminate the material from their servers and will pay $1.125 million to help pay for efforts to remove child porn from the Internet. The agreements follow a six- to eight-month undercover investigation of child porn newsgroups and will affect customers nationwide. But, as Cuomo said, such online pornography is difficult to stop. When one point of Web access is closed, the same perpetrators are likely to open another. And his agreements with the online services end at the nation's borders. [also refers to MySpace, Facebook]