If you are starting and don't have a website yet, this option is not for you. Even if you create your own website, it will get less visitors than the airbnb site gets. If you open your listing on a browser, you see your direct address in the address bar. It contains the airbnb domain and then room 1234 (your own number evidently) you can print this address on visit cards or send the link by mail. If your listing is interesting for business travelers you can leave cards with big companies, if it's interesting for holidays you can put ads in papers or online in the holiday season and communicate the link to interested persons.