Do you have those end-of-the-year blues? Looking for something to lighten your day off? Try Google Books for some business and professional humor:
http://books.google.com/books?q=+subject:%22Humor+/+Topic+/+Business+%26+Professional%22

Remember - these have only limited or snippet previews, or even none at all, but there should still be enough chuckles in there to lighten your load.

12/28/07 Followup: I have to admit posting this link as a teaser - it is actually a better link for you to use when demonstrating why your library is still the place to come instead of folks counting on Google Books for their reading sources. In the Business and Professional Humor section of Google Books, there were no full-text books available. Only limited or snippet previews, or none at all.