Speaking as a Cbuzz mod, and not as a TB member, there is a thread in Cbuzz for 'hire a service' where you can post details about your business, so it's not a hop skip and a jump away from that:
http://flyertalk.com/forum/showthrea...=195422&page=1

Problem I can see is that if we did go down that route, we wouldn't be able to keep out the 1 post posters trying to see things, so a thread could be not that good.