The "graphs about songs" fad has evolved into a project from the makers of I Can Has Cheezburger where users post pop culture graphs instead of LOLcats. Below are my six favorite graphs from GraphJam, such as "Other man's pee strength vs. How badly it's weirding me out."

Honorable mention: The blog Culturegraph does the same thing; my favorite is Middle Earth Ring Distrubution Analysis.