Wikipedia
Viddler
Viddler is an interactive online video platform for uploading, managing, viewing, and tagging/commenting on videos. Viddler's paid business service includes secure uploading and viewing, support, a customizable Flash or HTML5 player, the ability to create a private online community, video analytics, file encoding, and player branding. Other features include video contest management, subscriptions, opt-in advertising, in-timeline tagging/commenting, and webcam recording.