In Atlanta, the most frequent advertisements offer connections with African-American women or gay and bisexual men.

The problem seems to be particularly bad along "densely urban areas" like Fulton Industrial Boulevard, the study found.

"You’ve got your major rappers from Atlanta come down to Fulton Industrial and shoot videos in the neighborhoods, on the streets, with the girls, and with the pimps and then pay $1,000 for the girls to come in and have sex with them," one unnamed law enforcement was quoted in the study as saying.

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Below is a compilation of all the best free chat lines and party lines in the US and Canada.

The line is owned and operated by Telemainia, which also operates The System gay chatline.

This is the best site to meet sexy black singles especially in the late night hours.You can use these phone dating services to find women (or men) looking to meet up and have a good time.Most of these party lines offer free trials so you can try them before you subscribe.No topic is off limits on The System LGBTQ (Gay, Lesbian, Bisexual, Transgender, Queer/Questioning). New members to the site get a feel of it as they can try it out for free.Gays across all nationalities are invited to join in and start chatting. Don’t be fooled, you wont find colorful people looking for rainbows on Fun Chat, this chatline is for other types of fun – if you know what I mean.Exclusively created for the GLBTQ community, straight people are strictly forbidden.