What is the Best Internet site for Swaping Gift Cards for CASH?

I have some gift Cards that i had received as Gifts. The Values are still good andmost have no Experation Dates anymore. I just want cash for these Gift Cards i will never use. Here is the list

1. Macy's $100.00

2. Macy's $100.00

3. Macy's $100.00

4. Macy's $100.00

5. Macy's $100.00

6. Liberty Travel $50.00

7. Liberty Travel $50.00

8. Barnes & Noble $25.00

9. Barnes & Noble $20.00

10. Borders Books $25.00

11. 4 Gift Cards $10.00 each card for can be used at the following: (40.00)

*. Bennigans, Bonanza Steak House, Ponderosa Steak House, Steak & Ale, The Plano Tavern

12. StarBucks $5.00

I am willing to sell these cards for the same prices. I know i will not use these Gift Cards and anyone interested in buying these cards. Please let me know.. And could anyone tell me the best sites to use for exchanging these cards for Cash. Thanks for your help and time with this question.

The Beatles.