This is a strange little compendium of symbols. Half of these symbols are completely obvious, and I was ready to dismiss the whole thing as link-bait, but then there are a number of little gems that I never would have guessed. Also, when was the last time you saw a mono-spaced courier font used? It sort of works here, though overall there are a few too many different fonts strewn around.  I also have to give credit that the source links at the bottom do indeed lead to more interesting information on the subject.