Google 's " Project Glass " video propelled the company to the top of a list of the most-shared social video brands of 2012. Unruly , which released its 20 most-shared ads of 2012 , also looked at which brands ' videos were being shared the most. Nike came in second on the list, followed by newcomer TNT, the cable network. Google has used bone conduction for its Project Glass wearable computer, it’s claimed, promising discrete notifications that only the wearer themselves can hear. In case you didn’t know it, the only port on Google’s Project Glass headset is the microUSB port, and it is only used for charging. In other words, Google’s eyeglasses-like head-up display doesn’t work with headphones.