YouTube rolls up adding helpful notes that will allow viewers to contribute by adding additional information. It will be one of the best features of Youtube since it will create a live atmosphere both for creators and subscribers.
YouTube feature that allows you to add helpful notes to videos. These notes will provide additional information and create a better-informed YouTube community.
How this works: When you find a video that might be confusing or inaccurate, you can submit a note clarifying it. Your contributions will be reviewed by others with a wide range of views to ensure their quality and helpfulness before being added to the information panel below the video.
credit:youtube
This is somehow, similar to wikipedia where you can add an information to an existing one. This new feature is currently for invitation only and you have to sign-up to get the feature.