Amazon has launched an online trade-in program which allows people to trade old electronic goods, video games, movies and textbooks in exchange for gift cards. All you need to do is head to Amazon's trade-in website and pick the item you'd like to trade in. Amazon will accept only those items that are listed on their Trade-In stores. To find whether your old junk is eligible for trade-in, you can search by product title, ISBN, or product model number or manufacturer.