But there's one frontier YouTube hasn't conquered: the automobile. Could you imagine what would happen if we could watch videos on car windshields, or had a keyboards mounted to steering wheels?

The stands were packed at Tucson Dragway Saturday night for the season finale of Donut Media's YouTube Series HiLow.

Local police have been swamped with calls to arrest Marques Brownlee, known as MKBHD on YouTube, after he posted a video of ...