Here's some I use(all streaming, no registering):

www.youtube.com
www.veoh.com
www.gofish.com
www.animefever.org
www.sweetanime.com
www.watchfreeanime.net
www.zomganime.com
www.animecrazy.net
www.animegiant.com
www.animevenue.com
www.youranimenow.com

Enjoy.