I watched a video about how You Tube video's spread. Most video's become popular when people make remixes of the video  or tweet or facebook. Something I remember from this is that there are are "tastemakers" who make some video's popular. Like celebrity's, if you follow them on Twitter or Facebook they might say something about a video and that will make it popular. One really annoying but very popular video last year was Rebakah Black's video on the song called "Friday". I think this video became popular because tastmakers share it with friends or it's just because  their are so many remixes for every day of the week. well that's what I have to say for now. Now it's your job to watch the video so here is the link: http://www.ted.com/talks/view/lang///id/1371 So I hope you enjoy the video. God bless your day and please commen!!!