reprint - 11:44 pm on Sep 21, 2007 (gmt 0)
Vince's post reminded me that a company i work for produced a small brochure which contains some nice graphics. The most requests are for those graphics from professors. If you are handy at graphic art, professors lap up good graphics that they can use in teaching. Provide them in powerpoint and pdf and make them free to use only asking that they reference the source by a link.