St. Louis (KSDK) - The research firm, TowerGroup, estimates that since 2005 $41 billion in gift card purchases have gone unused.

Here's how you can cash in and get paper for your plastic. There is a surge of websites like Cardpool, ABC Gift, and Plastic Jungle that buy unused gift cards for cash, or sell gift cards well below face value.

Experts advise people to check several websites to find the best deal. Below is a list of websites tohelp your search.