click on the add video link and just add links from many sites e.g. :
YouTube, GoogleVideo, MyVideo, GameSpot, Koreus, Sapo, LiveLeak, GameTrailers, Veoh, Sevenload, Vidmax, Izlesene, Vidiac, OnSmash, GodTube, Dailymotion, MySpace, BrightCove, Youku, LiveVideo, Expertvillage, Redtube, PornoTube, PokerTube, PikNikTube, Filmpjes.nl, stream.cz
Also later on you will be able to upload directly to the server any of your own videos 