Seatylock, a successful kickstarter, is a clever, high-strength bicycle lock that lives inside your bike seat. [more inside]
Who Pinched My Ride? "Stolen bicycles have become a solvent in America’s underground economy, a currency in the world of drug addicts and petty thieves." Outside's Patrick Symmes tells his story of loss(es), frustration and the failures of modern technology. [more inside]
The way to make a very secure lock for your bike. Auf Deutsch, but the working of the device is clear. Webpage for the invention, Google Translated, apparently with a parts list.