Sweet! [Only Registered Users Can See Links. Click Here To Register] has released an update for Ultimate PSPTube, which now has support for a grand-slamming total of 26 video streaming sites, right on your PSP. Aside from additional sites, Ultimate PSPTube v1.6 also incorporates a bunch of fixes most of you guys will surely appreciate.
Changelog for Ultimate PSPTube v1.6:
Yuvutu is now included
xHamster is now included
Fixed a bug in [Only Registered Users Can See Links. Click Here To Register] where the thumbnail and title would display incorrectly for some results
Fixed the VBox7 script so the videos now work again
Made a few changes to how the description text is handled
With that said, now it's time to get busy! Choose your poison, guys. Here's the current list of supported sites:
The readme file in the download archive includes more notes and information on how to get your PSP to play videos from all of the sites this homebrew app currently supports.
PSP homebrew: Ultimate PSPTube v1.6 
