Xeni Jardin directs our attention to the amateur music videos available through Google Video.
So I watched a little of the Awesomely bad teen home-music-video, and then I typed in something I thought was pretty innocuous, "frog," wondering if other people have as much footage of their little boys catching frogs as I do. And I found this gem among the top hits: Frog Heart Beating.
It really is a video clip of the beating heart in a partially dissected frog. I suppose it's very educational, but sometimes I'm just amazed at what people will put up on the web.
(I really like frogs and, while I understand that dissecting them serves an educational purpose, I would prefer that frogs remain undissected.)