TubeLister - Generate a YouTube playlist from your opened tabs.
Ferris - Create video albums & invite others to collaborate
OrganizeTube - Create video playlists from Youtube, Vimeo and other sources
LookAt - InVision for videos
Vidlis - Create music playlists from YouTube videos.
Typito - Web based drag-and-drop tool to create engaging videos with beautiful typography, images and brand layouts.