While the Internet is a source of information, it is not the only source. Some research studies have indicated that as much as 70% of the information available online is either incorrect or misleading. Often it is no more than someone's (often uninformed) opinion. In addition, you need to know where to look - sometimes the information you need will not be on the first few pages. Trying different wording on your search also helps.
http://pubs.ext.vt.edu/2902/2902-1091/2902-1091_pdf.pdf
http://www.ext.colostate.edu/pubs/foodnut/09377.html
I think you will find that any government organization will tell you to wash the eggs, as liability issues have become so ridiculous that those groups are leery of a lawsuit, and regulations require that large-scale egg producers MUST wash and sanitize eggs. Of course that is due to the fact that the eggs from large producers are disgustingly filthy and contaminated due to the pathetic housing those birds are provided.
Keep in mind that since eggs are porous, any chemicals you apply can penetrate into the egg.