Most of this research has been conducted in the last 10 years. The report examines three categories of missing children: 1) runaways, 2) victims of parental kidnapping, and 3) victims of nonfamily abduction. Findings indicated that between 11 and 23 percent of runawys become involved in prostitution; the rate is higher for females than males. About 25 percent of male and female juvenile prostitutes take part in the production of pornography. Runaways are at higher risk of rape and other forms of sexual coercion than are other adolescents. No evidence exists that parentally abducted children are at any greater risk of sexual exploitation than children in the general population. Little information exists on the relationship between sexual abuse and no family abduction, although sexual abuse is one of the motivations for child abduction. Research recommendations, and 82 references. (Author summary modified)