This document discusses different genres of videos on YouTube including informational, entertainment, music, persuasive, and tutorial videos. It notes that viewers watch videos while uploaders make and upload videos, with each trying to inform or entertain the other. The genres represent different ideas and intentions of users for watching videos. Relationships form between viewers and uploaders who share ideas, and between genres and the people who watch those genres. YouTube is accessible to anyone with internet and allows users worldwide to communicate and share ideas through different genres on a variety of topics.