Magazine advertising sales

We are an online exclusive concierge service that provides a social planning service for its members, we offer them access to the best restaurants, members clubs in London and boutique hotels throughout the world, working with magazine like harpers bazaar, to coincide with this, this year we are launching a printed guide called The Little Black Book this guide will be printed twice yearly and will list the top 100 venues in London, this is to go out to all the top hotel concierge and to our existing database of over 100,000.
We are now looking to outsource our advertising sales for the guide, this is on a commission only basis but we are offering substantial percentages