That box of cords sitting in the garage might be worth a few bucks.

Websites like It's Worth More, Gizmogo, Gazelle and Decluttr offer cash in exchange for a variety of used electronics.

For many people, gold mining conjures images of an old prospector sifting sandy water through a metal pan in the blazing sun. But these days, the process is far more advanced than the 1800s gold rush ...