 Paul Norman was one of the earliest directors to gain a reputation for creating bisexual films, with his "Bi and Beyond" series debuting in 1988.Content featuring male bisexuality has been a growing trend since the advent of internet pornography.However the genre remains a very small proportion of the pornographic DVD market; for example at porn retailer HotMovies.com, there are only 655 bisexual titles out of a catalogue of more than 90,000 films.