If you like to do things like build your own guitar, send your mobile phone into space, knit armor, and stick LEDs on every possible surface, then you need MAKE magazine in your life. It's full of cool articles and how-tos for people who want to work in a mad science lab - and the people who love mad scientists. Today only, MAKE publisher O'Reilly is having a sale on ebook versions of the magazine - at only 6 bucks a pop! Such a deal. Check it out here!