An academic work dealing with the history of the asexual community is presently lacking. Although a few private sites for people with little or no sexual desire existed on the Internet in the 1990s, scholars state that a community of self-identified asexuals coalesced in the early 21st century, aided by the popularity of online communities. Volkmar Sigusch stated that "Groups such as 'Leather Spinsters' defended asexual life against the pressure of culture" and that "Geraldin van Vilsteren created the 'Nonlibidoism Society' in the Netherlands, while Yahoo offered a group for asexuals, 'Haven for the Human Amoeba.'" The Asexual Visibility and Education Network (AVEN) is an organization founded by American asexuality activist David Jay in 2001 that focuses on asexuality issues. Its stated goals are "creating public acceptance and discussion of asexuality and facilitating the growth of an asexual community".