Apparently, there are hundreds of periodic tables floating around the web. No, not the usual Periodic Table of elements you studied in high school. These are another class of periodic tables of random and sometimes bizarre stuff (like periodic table of elephants), where periodicity is the last thing you will find in them.
And then someone came up with another brilliant idea for a periodic table – the periodic table of periodic tables. Herewith, I present to you this achievement in information, categorization and obsession.
Oh well, we did cover the Periodic Table of Typefaces last year.