By Jeff Kleist | for Technology Tell Looking to save a little extra dough off of your holiday shopping? Visit Amazon's Facebook page, where the company is offering a $5 off $25 coupon that must be redeemed by Sunday, December 9. This deal was last offered a few weeks back, but there are a limited number of coupons available, so spend far, spend deep ... but spend it fast, before it melts like a snowman and leaves all that Facebook sharing for naught. * * *    ...