songs Update: "The Electric Slide" is *not* about a vibrator, according to songwriter Rusty Blazenhoff

music Motörhead launches line of vibrators "that rock" David Pescovitz

good vibrations Vibrators weren't always the sleek little machines they are today Carla Sinclair

Entertainment Gwyneth Paltrow wants to sell you a vibrator Jason Weisberger

Arduino If you want to learn about Arduino, this is the book to get Mark Frauenfelder

Gadgets Maker of internet-connected vibrator must pay $4m for secretly tracking users' sexual activity Rob Beschizza

Gadgets LED jump rope shows fitness data in thin air Rob Beschizza

books Digital tools have a mind of their own: yours Clive Thompson