Gay social networking/dating website, Gaydar, has recently gained 50,000 likes on Facebook and to celebrate this, they've released a promo code that you can use to upgrade your account to a Premium Member for free that's valid for 7 days.
You will have to be quick though, as the promo code ends todays (which is why the title has "last chance" in it).
So to redeem your free weeks worth of premium membership on Gaydar, login to your account, then select "My Gaydar" and then the option "My Account". You should see a box saying "Do you have a voucher?", in that box type in the promo code: 50KTHANKS, then hit "Verify". You should then be presented with a message saying your account's been upgraded for 7 days.