Re: hmmm....
A small point: an entrepreneur is a middleman (he takes (prendre) in the middle(entre). The website is an entrepreneur. The professionals are self employed businesspeople.
Back in the early, optimistic days of the Internet the talk was of disintermediation - that is to say, getting rid of the intermediate steps in buying and selling chains. The actual outcome has been a pile up of levels of intermediation within organisations like Crapita, and a lack of transparency. Oh how overoptimistic we were.