Joost is an online video service similar to Hulu, and they just launched a PS3-browser specific version. You browse the menu with the D-pad and hold the X button to go into fullscreen. The quality is pretty good and the interface is pretty slick. You can check it out by going to http://labs.joost.com/tv in the PS3 browser.

nice, I'll have to check this out later. I assume it doesn't have as much content as Hulu though?

Not as much, and not really any big names. Lots of music videos and stuff, and some other content. I honestly haven't used Joost in ages, so I am not sure where they are at right now with content.