Backpage is a classified advertising website launched in 2004.
It offers classified listings for a wide variety of products and services including automotive, jobs listings, and real estate.
Mixed modeling requires precise, replicated and well cross-dated tree-ring width series.
They said "To all intents and purposes, Backpage has instituted no effective procedures to prevent child sex trafficking ads from being created on its site." They say that they do not use obvious techniques to identify traffickers, such as using the same phone number, email address or credit card of a known trafficker, or reusing the same picture of known victim of human trafficking.
Advocates for Backpage point out that by carefully scrutinizing each posting in the Adult section before it is posted, removing questionable posts and reporting potential cases of the trafficking of minors to the authorities and NGOs such as NCMEC, Backpage is aiding in the fight against this activity.
The foundation and traditions of free classified advertising and free circulation were part of the fundamentals of the alternative newsweeklies dating back to 1971.
The Chicago Reader and the Phoenix New Times were pioneers in these operating philosophies.
After a series of court cases and the arrest of the company's CEO and other officials, in early 2017 Backpage removed the adult services subsection from their website in the United States, though said adult services simply moved to both the dating and massage sections of the site.