Groupon offers the Samsung 16GB SDHC Class 6 Secure Digital High-Capacity Memory Card, model no. MB-SSAGA/US, for $12 with free shipping ($0.75/GB). That's a buck below our mention from two weeks ago and the lowest total price we've seen for this water- and shock-proof SDHC card. (It's also a current price low for this model by a buck, although most stores charge $16 or more.) Sales tax is added where applicable. Deal ends August 28.