- **Motherless**
- **Motorsport**: motorsport.com
- **MovieClips**
+ - **MovieFap**
- **Moviezine**
- **movshare**: MovShare
- **MPORA**
- **smotri:broadcast**: Smotri.com broadcasts
- **smotri:community**: Smotri.com community videos
- **smotri:user**: Smotri.com user videos
+ - **SnagFilms**
+ - **SnagFilmsEmbed**
- **Snotr**
- **Sohu**
- **soompi**
- **TheOnion**
- **ThePlatform**
- **TheSixtyOne**
+ - **ThisAmericanLife**
- **ThisAV**
- **THVideo**
- **THVideoPlaylist**
- **twitch:stream**
- **twitch:video**
- **twitch:vod**
+ - **TwitterCard**
- **Ubu**
- **udemy**
- **udemy:course**