I don't really enjoy April Fool's Day. Mostly this is because of a pathologic fear of being caught by a joke. I blame it being laughed at in the 4th grade because I thought that the instamatic flu was a real disease (from Shel Silverstein's poem "Sick.") Needless to say, I have diagnosed at least 3 or 4 people with the instamatic flu.
I have, however, grown very fond of the Google April Fool's Day projects. This year's is no exception.