You may or may not be familiar with John Green. He's written a few YA novels, one I'm particularly fond of "An Abundance of Katherines." He's involved with a site I haven't yet explored fully enough, called Nerdfighters, which is a collection of videos between John and his brother Hank.
The video prompted this post is the one with the two giraffes, and well, suffice to say, it isn't really about what it initially appears to be about. It includes both a Schrodinger's cat reference, and for those of you who've enjoyed Stephenie Meyer's books you can also see (insert minor gleeful squeal here) John Green debating the merits of Edward vs. Jacob. I won't spoil it for you.
Also, the video entitled "Three Things" has a special request for anyone who happens to work at Google. I'm just saying.
And lastly, the video entitled "Cutetacular," really is indeed Cutetacular.
Okay, it was lastly, until I found this one, which is a musical tribute to the last Harry Potter, and contains the line : "I need Harry Potter like a grindylow needs water" and more.