a mystery for some 21-st century version of Encyclopedia Brown

You know that little icon that appears in your browser next to the URL, the one that for my site used to be a little "d" which I made myself, until it was replaced by the hegemonic blogger "b"? I am currently pondering the question of why my online banking site and the web usability site usability.gov have the same one. Is it a conspiracy? Can you download them somewhere? Is there a haunted amusement park? And sub-question... why did I notice this?

Life is full of mysteries, some of them more mysterious than others.

I am at school "writing a paper," so you can probably expect many more pointless but diverting updates as the afternoon wears on.