Logorama, the movie comprised entirely of animated logos, that just won the Oscar for best animated short film is a great demonstration of the sensory overload that we all have from the bombardment of logos on a daily basis.  Are most of them meaningless?  YES.  Will that stop marketers and agencies from spending lots of time and money on them.  NO.  The best example of marketing hog shit that I have ever seen is the PDF that you can download here from Arnell who redesigned the Pespi logo about a year ago.