AutoTrader.com is an American automotive classified Web site operated by AutoTrader.com L.L.C.; Cox Enterprises owns 75% of the company, Providence Equity Partners owns the rest. It was founded in August 1997 and is the largest classified automotive site in the United States. Autotrader.com inventory can currently be found at www.edmunds.com, www.nada.com, www.ajccars.com and many other online automotive sites. Autotrader.com is currently the largest such site in the United States, based on ad volume.
An open source license is a copyright license for computer software that allows the source code to be freely, that is by anyone for any purpose, used, modified and shared. This allows end users to review and modify the source code for their own customization, curiosity or troubleshooting needs.