On Slavery
From Armies of Liberation

85 Black Sudanese boy slaves were freed from Arab masters last month through the mediation of the Arab-Dinka Peace Committee at Warawar, Southern Sudan. The freed slaves were documented last week by an international team of researchers sponsored by CSI.
The freed slave boys were among the tens of thousands of Black women and children who had been enslaved by Sudanese government-sponsored militias during two decades of civil war

A friend sent this link: Islamic Fundamentalism and the Sex Slave Trade in Iran

Joining a global trend, the fundamentalists have added another way to dehumanize women and girls: buying and selling them for prostitution. Exact numbers of victims are impossible to obtain, but according to an official source in Tehran, there has been a 635 percent increase in the number of teenage girls in prostitution.

There's also a substantial list of references for the Iran article, available at this page.