ClipBlast recently announced a new version of its internet video search engine. ClipBlast claims its new search technology, which it calls Video Navigator, learns what results to display based on user behavior.
I have to say that it needs to do some more learning as the results it was finding were particularly poor. When I searched for South Park 4 of the first 10 results were irrelevant. Then when I searched for Piano Lesson it could only find 8 videos, with over half being irrelevant, that’s pretty poor for a site that says it "has indexed more video content providers than any other video search engine"
When I tried to do the searches in my preferred video search engine PureVideo I got the results I wanted.