Some classified magazines specialise in particular areas, for example the sale of cars.
Such magazines may be national or local; distribution is via kiosks, newsstands, or dump bins, and less often via free home delivery or paid-for subscription through the mail.
As well as publishing the personal ads, the publishers of contact magazines often run an anonymous mail forwarding service that allows advertisers to identify themselves only with box numbers.
[2] Others used to be swinger or sex-contact magazines aimed at a readership of people looking for or offering casual sex.
Specialized magazines also existed for those with specific sexual preferences, such as those seeking BDSM encounters, or the services of professional dominants or submissives.