With the tech giants releasing new advanced models every now and then, there is an increasing trend to shift to newer models after every 6 months to one year. Do you know that there are a magnum 100 ...

You’ve got a used phone (or a few) that you’re ready to sell. You’re looking to make a decent profit. But, when you start searching online, you realize there are dozens of sites where you can sell ...

The market for used cell phones is exploding. Some used phones sell for a few bucks, while others go for more than $500. Many cell phone users, like Jeremie Braun of L.A.'s Mid-City area, are always ...

Sean knows far too much about Marvel, DC and Star Wars, and poured this knowledge into recaps and explainers on CNET. He also worked on breaking news, with a passion for tech, video game and culture.

Opinions expressed by Entrepreneur contributors are their own. How many old mobile phones do you have sitting around in drawers or cupboards, never to be used again? Like many people, you have traded ...