puzzles This multiple choice probability puzzle has been causing arguments for years Mark Frauenfelder
puzzles Can you solve the "Hanging Cable" problem, used as an Amazon interview question? Mark Frauenfelder
useful stuff Excellent cheap puzzle book: The Moscow Puzzles: 359 Mathematical Recreations Mark Frauenfelder
books Ready Player Two: read an interview with Ernest Cline and listen to his soundtrack for the book David Pescovitz
Boing Boing Gadgets Flip your flapjacks & omelets in style with this twin-skillet design Boing Boing's Shop
science fiction Here's your chance to buy the Kindle edition of Dan Simmon's essential science fiction novel Hyperion Mark Frauenfelder
happy mutants Puzzles that teach the fundamentals of crypto's essential, elusive zero-knowledge proofs Cory Doctorow