Proverbs are categorized by topic. This is just one page of a much larger site with many more resources as well as a link out to additional resources on proverbs.
This exhibit from the New York Public Library was created by Ehiedu E. G. Iweriebor of Hunter College. You will find an extensive library of images as well as an explanation of the topic with references at the end.
This meeting coming in October 2011 will be held by the AACU (American Association of Colleges and Universities) in Long Beach California. The webpage will be evolving with conference schedules and program highlights.