Here's the list of sites for viewing anime online. I'll update this as we receive more.
Crunchyroll.com (very limited now due to the removal of fansubs)
Animeseed.com (This one may end up being rather good)
Animemangafun.com (Has both anime and manga available to view online - anime requires registration though)
Try Animeseed.com. It uses Megavideo, and I tried a few random episodes which worked fine. Be careful of the Partypoker ads, as they'll open in a new tab and expand the window automatically (if you're using Firefox). Just close the tab and enjoy the show.