Collective Intelligence
Collective intelligence is collaborative description of a subject to fully describe it. It is used most commonly in statistics consensus decision making and through computer networking websites. The actual definition of Collective intelligence on wikipedia is contributed by over nine people.
Collective intelligence can also be defined as a form of networking enable by the rise of the internet.
From Pór and Atlee's (two founders of Collective Intelligence on the internet) point of view, maximizing collective intelligence relies on the ability of an organization to accept and develop "The Golden Suggestion", which is any potentially useful input from any member.
This allows people to debate ideas
The ability to comment on a subject, rate it or rate another persons opinion enables a system such as Youtube to show what would be considered "bad ideas", clarify misunderstandings and misconceptions about a certain subject based on the collective opinion of a group.
For example if someone posts a video of them self singing a song into a camera, the collective information that would be collected through comments of the video, ratings of the video, ratings of the comment's and the reply of the comment would collectively create what people think of it.
Each video displays a title, a single frame of the video, a collective rating, a view count and who the video is posted by. More in depth opinions of a video can be view once you begin watching the video. This is good so in order to actually rate or comment on something you have to actually open it, the view count changes as soon as you open the video rather than when the video is completed.
The collective opinion of a video on Youtube is based on the Rating and the view-count first and the comments secondly.