I've been a bit blog-lazy lately, but I'll see if I can get back in the swing.
The occasional posts by the Berkeley Seismological Laboratory are well researched, written, and composed. The latest BSL blog post was about surface (aka L) waves, waves that travel near the surface of the earth. Body waves, so-called P and S waves, are push-pull and shear waves that travel through the Earth's interior. The two types of surface waves, Love and Rayleigh waves, are named after physicists A.E.H. Love and Lord Rayleigh, who worked out the theory of their existence. Body waves provide an "x-ray"-type information of the Earth's interior, while surface waves provide models of the Earth's crust.
I heart Love waves.