- Swappa.com for Android devices
- Glyde.com for gadgets and games
- Gazelle.com for Apple products, plus Android, BlackBerry and other phones
- Gizmogul.com lets you sell old phones for cash and donate to charity at the same time
- NewtonsHead.com for Apple products, even damaged iPhones
- BuyBackWorld.com or BuyMyTronics.com for all electronics
- NextWorth.com for phones, cameras, tablets and games
http://www.clarkhoward.com/news/clark-howard/technology/sell-your-old-cell-phone-these-sites/nShcG/