I use these links searching for interesting videos on Google:
- Most recently added free videos, over 20 minutes long in the educational genre. (This often gives you some really obscure stuff: local ministers putting sermons up for their congregations, supplemental material from college and high-school classes, business pitches, and things you can’t imagine why someone would bother to put on the web.)
- Higest rated free videos, in English, over 20 minutes long in the educational genre. (These are pretty much all winners, and interesting in one way or another. You’ll find a lot of conspiracies, philosophers, scientific lectures, and a lot more, even some Bill Hicks comedy (rightly classified as educational))
- Most views, free, in English, over 20 minutes, educational. (This returns many of the same videos as ‘highest rated’, but these tend to be more controversial as they also gathered all the viewers who down-modded them.)
- Google Advanced Video Search. (Chose your language and video duration and check ’specific genres’ which will give you a list of genres. Make sure to scroll down to the bottom of the page and check off if you want to sort by rating or whatever.
- Entertainment (you might have to dig through several pages to find something that fits your definition of entertainment.)
- Comedy
- Art and Experimental (for some reason returns mostly anime for the first several pages.)
