YouTubeMC is a very simple plugin with a few commands that I needed for my server. It allows YouTubers to do /record and /livestream to announce that they are recording or livestreaming.
/youtubemc - main command
/record start/stop url - announces that you started/stopped recording
/livestream start/stop url - announces that you started/stopped livestreaming
/newvideo url - announces that you have uploaded a new video
For these commands only one permission is needed: 'youtubemc.youtuber'.
The source code can be found here: https://github.com/IamGalaxias/YouTubeMC.