Jonathon Coulton

I really like the music of Jonathan Coulton. His work isn't very well known outside of certain internet circles, he's most famous for being friends with minor celebrity  John Hodgman. 

Here are some of his songs set to video for your amusement!

Shop Vac

RE: Your Brains

Flickr (About random pictures he found on Flickr)

I Feel Fantastic

This is just a small sampling of his amazing music.