Seth Finkelstein, an anti-censorship activist and programmer devoted hundreds of hours of personal time beginning in 1995 and over the span of several years to decrypt and expose to public scrutiny the contents of censorware blacklists, including those of CYBERsitter, SurfWatch and Cyber Patrol. The blocked sites of these products included some that advocated safer sex, feminism, gay rights and anti-censorship positions, in addition to the porn sites such products were built to block. He raised the level of public awareness about the freedom of speech issues raised by Internet content-blocking software. (Advocate/Voice of the People.)
