PopSpot – YouTube's One-Stop Spot for All Things Pop- – Sponsors the World's Biggest Event for YouTube Stars and Their Fans. PopSpot, the new pop culture channel on YouTube, will be aiming all of its pop on Boston, May 4th & 5th, as the main sponsor of ROFLCon (Rolling On The Floor Laughing Convention: http://roflcon.org), the first Internet conference devoted entirely to Internet memes and their stars.