The people here are prostitutes - we provide sex, not companionship. The men contacting your agency (and how on earth do you expect to find the women who employ you work if you don't advertise?) will be looking for sex, and you will be procuring prostitutes for third parties which is against the law, or at least you will if you want to make any money.
I think you'll find the biggest advertising tool in the sex industry is the internet, and has been for some time. Most men don't stand around chatting with their friends and colleagues about which are the best prossies they've seen lately, despite what you seem to believe. I don't see much hard information either - what is your cut going to be and from how much; is the ?1500-?4000 before or after you've had a slice? Do you provide premises, drivers, security? How will you be screening clients?
Your free knocked-up-in-two-seconds hotmail address is all over the internet on porn, adult contact and swinging sites. Not professional, and not discreet (that's the correct spelling btw). I could go on, but d'you know, I really can't be arsed. Over to you, ladies.