New social science monographs. Distribution was strictly private. Many of these efforts have been rendered practically irrelevant by widely available Internet pornography. A former firefighter who claimed to have lost a bid for a job to affirmative action, Metro was already divining that porn might not be the ideal career choice for escaping the forces of what he called 'reverse discrimination. By many accounts VHS would not have won its titanic struggle against Sony's Betamax video tape format if it had not been for porn. Gender binary Gender identity Men who have sex with men Sexual identity Sexual orientation Women who have sex with women.