Not sure if its possible, but that post was ripped off word for word from Shoemoney.

http://www.shoemoney.com/2007/08/28/the-worlds-oldest-affili...

Argh, another asshole link-jacking :(

Could only be as old as vehicles that could taxi. Rickshaws? Carriages?

What about pubs and barkeeps and proprietors of inns and rest of the service personnel that have constant contact with public and travelers? Those have been around for as long as prostitution has been around.