Today is the last day of the SurvivalBlog benefit auction [1] for a brand new Big Berkey water filter, kindly donated by the fine folks at Ready Made Resources–one of our most loyal advertisers. The auction ends tonight at midnight, eastern time. The current high bid is at $330. Your bid includes postage. (It will be mailed to you at no extra charge.) Note that the current retail value of a Big Berkey is $335 plus postage, and prices are expected to rise further, with the ongoing decline of US Dollars versus Pounds Sterling. Just e-mail us your bid.