I would be remiss if I failed to note that today is both Pi Day (3/14) and Albert Einstein’s birthday. Wolfram Research has a great page, somewhat mathematical, on pi. I personally will be certain to celebrate Pi Day by losing or finding spurious pis in my homework.
Updated 12:02: It’s come to my attention that today is also the anniversary of the release of NCSA Mosaic, the first graphical web browser. One of the developers was Marc Andreesen, who went on to found Netscape, while the Mosaic browser code was later used as the basis for Microsoft Internet Explorer.