SurveillanceSaver is an OS X screen saver that shows about 400 live security camera videos from public accessible Axis network cameras. It shows surprising scenes from underwater pool cameras, cows in milking machines, to shopping malls and street cameras.Link
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.