Reader RFJ mentioned an awesome piece over at Instructables: Hidden Door Bookshelf.
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Frequent content contributor Damon S. suggested two articles on do-it-yourself hydroelectric power: Homestead Hydropower and Home-Made Water Power for the Homesteader.
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Kelly D. was the first of several SurvivalBlog readers to mention this: Two days of food stretched more than two weeks in mine; Determined to stay alive, trapped Chilean miners made two days of food last more than two weeks. These guys have displayed tremendous courage and discipline. May God see them safely home!
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Why the world is running out of helium? (Thanks to G.&T. for the link.)